The Clearwater Hydrofoil: A Comprehensive Guide

Close-up view of a state-of-the-art hydrofoil design showcasing its sleek structure

Intro

Kiteboarding has surged in popularity, not just as a thrilling water sport but as a vibrant community of enthusiasts pushing the boundaries of performance and technology. Among the innovations steering this momentum is the Clearwater hydrofoil—a game-changer that amplifies speed and elevates the riding experience to exhilarating heights. This article delves into the precise engineering that defines hydrofoils, their tangible benefits for kiteboarders, and how they sit within the larger framework of the sport today. From selectin the right equipment to mastering techniques, we’ll break down everything you need to know to ride the waves like a pro.

Equipment Selection

Choosing the Right Kite

Selecting the right kite is akin to choosing the right partner for a dance—one that complements your moves and style. The kite's size, shape, and materials can significantly impact your hydrofoiling experience. Generally, a larger kite is suitable for lighter winds, while a smaller one is more efficient in strong winds. Popular brands such as Ozone, Naish, and Slingshot offer various models tailored for hydrofoil use.

Size Matters: When opting for a kite, consider your weight, the wind conditions, and the size of the board.
Material Quality: High-quality materials ensure durability and better performance. Look for kites that employ ripstop fabric and reinforced seams.
Shape and Design: Some kits feature a flatter profile that maintains speed while foiling, while others provide more pull for jumps.

Boards & Accessories Overview

When it comes to board selection, it’s not a one-size-fits-all situation. The Clearwater hydrofoil gears require a compatible board. Here are some aspects to ponder:

Tailored Boards: Boards specifically designed for hydrofoiling give a better experience as they have different volume and shape.
Foil Components: The foil itself consists of three parts: the mast, wings, and fuselage. Each component contributes to overall performance and needs careful selection.
Safety Gear: Don't neglect essential accessories such as impact vests, helmets, and booties to protect yourself during tricks and falls.

Skill Development

Tips for Beginners

Starting on your hydrofoil journey can feel like learning to walk again. Here are some practical tips:

Start Small: Begin practicing in flat water and light winds to build confidence. It’s a harsh lesson to learn that massive waves can bring beginners back down to Earth in seconds.
Positioning: Learn the correct stance. Your front foot should be over the front of the board, equal weight in each foot will make control more manageable.
Practice Your Launch: Master the art of launching the kite—this alone can make or break your session.

Advanced Maneuvers and Techniques

For those who have the basics down pat and wish to elevate their skills:

Jumping: Work on your timing to pop off the water. It’s all about getting that kite into the sweet spot for lift.
Transitions: Practice switching directions as seamlessly as changing lanes while driving. Smooth transitions not only look impressive but also maintain speed.

"Hydrofoiling is not just about speed—it's about feeling one with the water."

The Clearwater hydrofoil serves as a testament to kiteboarding's evolution. As you embark on this journey, bear in mind that gear selection and skill development go hand-in-hand. Choosing appropriate equipment combined with the right techniques paves the way for an exhilarating ride that pushes the envelope of what's possible, transforming mere kiteboarding into a mesmerizing dance on water.

Prelims to Hydrofoils

The realm of watersports has seen an intriguing transformation over the years, and at the heart of that evolution lies the hydrofoil. Many might wonder, why is this topic worth the discussion? It's not just a component of a sports equipment; it represents a novel approach to enhancing performance on water. Understanding hydrofoils is akin to unlocking a treasure chest of benefits that athletes and enthusiasts aspire to experience fully.

Hydrofoils elevate a rider above the water, minimizing drag and maximizing speed. The benefits are manifold. Not only do they allow kiteboarders to reach impressive speeds, but they also open up new avenues for tricks and maneuvers previously deemed too challenging or impossible. Herein lies the importance of exploring hydrofoils — they are an intersection of technology, design, and athleticism, showcasing what can be achieved when these elements converge.

Equally essential are the considerations surrounding hydrofoils, such as the right choice of gear, weather conditions, and individual rider skill levels. By diving deeper into this subject, we unravel the complexities and nuances that can enhance or hinder one's experience on the water. Through our exploration of the Clearwater hydrofoil, readers can expect a deeper understanding of how these innovative devices function and evolve within the kiteboarding landscape.

What is a Hydrofoil?

A hydrofoil is a specialized structure that consists of a wing-like shape mounted below the water surface. As a rider gains speed, the hydrofoil lifts the board and the rider above the water, creating an incredible sensation of gliding. Imagine flying just above the waves; it’s that sensation that makes hydrofoiling exceptional.

Hydrofoils generally consist of several parts: the fuselage, the wings, and the mast. The mast connects the wings to the board and is adjustable for various riding styles. With changing designs, hydrofoils now cater to different types of watersport enthusiasts, giving them the freedom to choose equipment that aligns with their preferred riding style.

Brief History of Hydrofoils in Watersports

Hydrofoils have a rich history that reaches back to the early 20th century. Initially conceived for competitive sailing by inventors like the Italian designer Enrico Forlanini, the technology took decades to find its place in recreational sports. The real breakthrough came in the 1980s when hydrofoils started to be integrated into various watercraft, notably sailboats and surfboards.

However, it wasn't until the 2000s that the technology began to gain traction in kiteboarding. Kiteboarders embraced hydrofoils for their ability to ride in lighter winds and flat water, making them a game-changer. Since then, numerous designers and companies have sprung up, offering unique hydrofoil designs and materials, thereby advancing the technology continuously. Today, hydrofoils are not just a fad but a staple in the watersport community, pushing the boundaries of what is possible on the water.

The Science Behind Hydrofoils

A kiteboarder gracefully riding above the water with a hydrofoil, demonstrating agility and speed

Understanding the science behind hydrofoils is crucial to appreciating their role in kiteboarding. Hydrofoils incorporate principles of physics to enhance performance on the water, making them a revolutionary addition to the sport. Their design utilizes hydrodynamics to lift the board above the water's surface, drastically reducing drag. This not only maximizes speed but it also allows for a smoother ride even in choppy conditions. Kiteboarding practitioners who grasp these concepts can make informed choices about equipment and usage, enhancing their overall experience.

Hydrodynamics Explained

Hydrodynamics refers to the behavior of fluids in motion. In the context of hydrofoils, it examines how water interacts with different surfaces as it moves. Think about how a fish swims or how the wind blows over a bird’s wing; the principles are alike. When a hydrofoil is in motion, its shape forces water to move faster over the top than underneath. According to Bernoulli's principle, this difference in speed creates a pressure difference, essentially sucking the foil upwards instead of pushing it down.

Aquatic enthusiasts often note how the wing shape of the hydrofoil affects its performance. While some may prefer a larger wing for greater lift at lower speeds, others might lean towards smaller wings for high-speed maneuverability. It’s about knowing your style, because that choice can swing your control and stability.

"The right design can change the game, enhancing not only speed but also the joy of riding."

How Hydrofoils Lift Off Water

The lift generated by hydrofoils occurs through a precise balance of angle and speed. When a kiteboarder starts moving, the hydrofoil begins to generate lift at a certain speed threshold, usually around 8-10 knots. At this point, the angle of attack (the angle between the wing and flow of water) becomes critical. A minor adjustment in this angle can lead to significant changes in the amount of lift produced.

As the hydrofoil ascends, the rider must adjust their stance and balance to account for the reduced drag and increased speed. It’s a delicate dance of weight shifting and balance. Once airborne, riders often describe the sensation as gliding through the air—almost like flying, with only the soft splash of the water below as a reminder of their former state.

Hydrofoils have allowed for a new level of freedom on the water, permitting longer rides with less effort. With less resistance, riders can explore capabilities previously unimaginable. Thus, understanding how hydrofoils lift off water is not merely a matter of physics but a gateway to mastering the art of kiteboarding.

Advantages of Using a Clearwater Hydrofoil

The Clearwater hydrofoil stands out in the marketplace for more than just its trendy looks and advanced engineering. Each ride on one of these devices can bring a whole different experience compared to traditional kiteboarding methods. Riders often find that the advantages of using a Clearwater hydrofoil range from improved speed to enhanced handling, which can ultimately change the way they interact with the water and the wind.

Increased Speed and Performance

Riding a Clearwater hydrofoil can be likened to soaring through the air on a flying carpet. The efficient lift created by the hydrofoil allows kiteboarders to reach impressive speeds that are otherwise unattainable. When the hydrofoil lifts off the water, drag is significantly reduced, letting riders glide with less resistance. As a result, folks can keep their momentum even in light wind conditions.

Importance of Context: In the realm of kiteboarding, being able to achieve high speeds can contribute not only to fun but also to competitive advantage in races and tricks. The combination of speed and stability allows riders to perform maneuvers with precision. Plus, for those who enjoy cruising along the shore, the sheer joy of flying above the waves can’t be understated.

Enhanced Maneuverability

Navigating with agility is one of the joys of kiteboarding, and Clearwater hydrofoils take this to another level. These hydrofoils are designed to be responsive, making it easier for athletes to carve sharp turns and transition fluidly from one direction to another. The feedback from the foil can be felt in the rider’s feet, allowing them to make quick adjustments mid-ride.

What's more, the design of the hydrofoamresists potential stalling, which can often catch riders off-guard with traditional setups. When conditions change or obstacles pop up, the hydrofoil can adapt more seamlessly, leading to fewer wipeouts and increased confidence in one’s abilities. Riders can feel this added agility, providing an exhilarating experience where they can truly master their craft.

Improved Stability and Control

Stability is crucial, especially for those who are new to kiteboarding or ready to push their limits. Clearwater hydrofoils provide enhanced stability by allowing the rider to float above the surface of the water, which reduces the effects of choppy conditions. This means less shaking and rattling, and more focus on the ride itself.

When it comes to control, hydrofoils offer a unique experience. The rider can fine-tune their input to maintain balance, and the overall ride feels more natural due to the way the board reacts to movements. More stable rides allow not just for better performance in challenging environments, but they also create a safer experience.

“The Clearwater hydrofoil is like an extension of yourself. It moves with you, responds to the smallest input, and gives you confidence to ride better.”

In sum, whether you’re an experienced rider or just beginning, the advantages of using a Clearwater hydrofoil are profound. The enhancement in speed, the agility during turns, and the increased stability combine to create a unique and enjoyable riding experience. As kiteboarding evolves, embracing these advantages could very well resonate with both enthusiasts and newcomers alike.

Types of Clearwater Hydrofoils

Understanding the types of Clearwater hydrofoils is vital for anyone aiming to elevate their kiteboarding experience. Each variation carries its own nuances that can drastically affect performance, ease of use, and overall enjoyment on the water.

Foil Design Variations

Foil design plays a crucial role in the functionality and adaptability of hydrofoils. Hydrofoils can differ significantly in their configurations. Here are some common designs you might encounter:

Surf Foils: Designed to glide smoothly on waves. They often have larger wings that provide lift at lower speeds.
Kite Foils: Specifically crafted for kiteboarding, these foils are light and allow quick responsiveness, ideal for dynamic riding.
Race Foils: Optimized for maximum speed and minimal drag, these designs are for those seeking competition performance.
Freestyle Foils: Tailored for tricks and jumps, these are usually more stable and easier to control during aerial maneuvers.

Each variation of foil design comes with unique benefits that can cater to different riding styles. The choice you make should align with your skill level, preferred riding conditions, and personal goals in kiteboarding.

Material Choices: Carbon vs. Aluminum

When selecting a hydrofoil, you'll notice that materials vary significantly, mainly between carbon and aluminum. Each material brings its own set of advantages and drawbacks:

Comparison chart of different hydrofoil models highlighting performance features

Carbon Foils: These are lauded for their strength-to-weight ratio. Being significantly lighter than aluminum enables quicker acceleration and an overall snappier feel during rides. However, they usually come with a higher price tag.
Aluminum Foils: Generally more affordable and durable, aluminum hydrofoils are favored by many beginners and intermediate riders. They might not offer the same level of performance as carbon foils, especially in terms of weight, but they can withstand more impacts, making them ideal for those learning tricks or riding in challenging conditions.

Choosing between carbon and aluminum should be influenced by your budget, durability requirements, and performance aspirations.

Size and Shape Considerations

The dimensions of a hydrofoil, including its size and shape, significantly influence the riding experience. Here are key aspects to ponder:

Wing Size: Larger wings provide more lift and stability, which can be beneficial for those just starting out or for lighter riders. Smaller wings facilitate higher speeds at the expense of stability, better suited for experienced riders.
Aspect Ratio: A higher aspect ratio wing (long and narrow) offers less drag and is more efficient at speed, making it favored in race scenarios. Conversely, a lower aspect ratio (short and wide) excels in maneuverability and stability at slower speeds.
Thickness: A thicker profile generally increases lift but can also create more drag, affecting the overall speed.

All these considerations come together to determine how a hydrofoil will perform under different scenarios. Doing some research or trying out various options before settling on a type can definitely pay off in enhancing your kiteboarding experience.

As you navigate the choices in hydrofoil types, remain open to experimenting with different styles and materials to find the setup that resonates best with your riding aspirations.

Selecting the Right Hydrofoil for Kiteboarding

Choosing the proper hydrofoil is akin to picking the right instrument for music—each has its quirks and benefits. In the realm of kiteboarding, a hydrofoil can dramatically change your riding experience. It’s not just about going faster; it’s about making the most of your time on the water. Selecting the right hydrofoil involves various factors, such as personal skill level, riding style, and the specific conditions you’ll be navigating.

Key Features to Look For

When you set out to find your ideal hydrofoil, certain characteristics can help guide your decision-making process. Let’s break down what you should keep an eye on:

Foil Size: Smaller foils are often more suited for advanced riders, offering better maneuverability but less stability. If you are still learning, a larger foil might be best; it gives you that extra bit of lift and stability.
Wing Shape: The design of the wings impacts how the board behaves in the water. A wing with more surface area generally provides more lift, while narrow wings can offer speed.
Material: Different materials impact weight and strength. For instance, carbon fiber is lighter and usually stiffer, which can lead to improved performance, while aluminum tends to be more affordable but heavier.
Mast Height: A taller mast can help you ride in chop or rough water, lessening the chance of the board touching the wave, while a shorter one is more maneuverable in calm conditions.

Understanding these features will set you up for success as you explore your options.

Budget Considerations

Let’s face it, the dollar signs can often dictate what you purchase. Hydrofoils span a wide price range, so being realistic about your budget is crucial. Here are a few points to ponder:

Initial Investment vs. Long-Term Value: Sometimes, a higher-priced foil tends to offer better durability and performance. You may find yourself needing to replace cheaper options more frequently, leading to higher costs over time.
Used Equipment: Keep your eyes peeled for second-hand gear. Many seasoned kiteboarders sell their equipment after upgrading, which might give you access to quality hydrofoils at a fraction of the cost.
Customization Options: Some hydrofoils allow for custom attributes—like adjustable masts or interchangeable wings. These can save you money in the long haul, as you won’t need to purchase multiple setups.

In a nutshell, determining the right hydrofoil involves a careful balance of personal preferences and wallet considerations.

"Selecting the right hydrofoil is not just a purchase; it’s an investment into your kiteboarding future."

You’re not just buying a piece of equipment; you are investing in the thrill of riding atop the water, carving through waves like a hot knife through butter. With careful thought, your hydrofoil can become a critical ally in your adventure on the mighty liquid playground.

Maintenance and Care for Hydrofoils

Taking care of your Clearwater hydrofoil is key to prolonging its lifespan and ensuring optimal performance. Just like any high-performance piece of equipment, hydrofoils require routine maintenance and attention to detail. Regular care not only enhances your riding experience but also saves money in the long run by reducing the need for costly repairs. Understanding the maintenance protocols can greatly impact your performance out on the water.

Cleaning and Inspection Routines

Maintaining the cleanliness of your hydrofoil is the first major step in its upkeep. Saltwater and dirt can accumulate on the surface, potentially leading to corrosion and performance issues. Here's a simple routine you can follow:

Rinsing After Use: As soon as you're back from your session, give your hydrofoil a rinse with fresh water. This helps remove salt and debris that could cause damage over time.
Using Mild Soap: Occasionally, use a mild soap solution to clean your foil thoroughly. Avoid harsh chemicals as they could degrade the materials. Use a soft sponge to scrub away grime.
Drying Properly: After cleaning, dry your hydrofoil properly to prevent water spots and rust. Leave it in a shaded area to air dry.
Inspecting for Damage: Frequently check for any signs of wear and tear. Pay attention to the wings, mast, and fuselage for cracks, chips, or discoloration. Early detection of issues can prevent major repairs later.

Regular inspection ensures your gear stays in tip-top shape and functions as it should.

Storage Best Practices

Proper storage is crucial for protecting your investment in a Clearwater hydrofoil. Here’s how to store it correctly:

Indoor Storage: If possible, store your hydrofoil indoors in a cool, dry place. Avoid direct sunlight, as ultraviolet rays can degrade materials over time.
Dismantling: If storage is long-term, consider disassembling your hydrofoil. This reduces stress on the joints and prevents partial wear.
Using Protective Cases: Invest in padded bags or protective cases for your hydrofoil. This helps to guard against scratches and dings that can occur during transportation.
Avoid Humidity: Ensure that the storage area is not humid, as moisture can lead to mold and corrosion issues.

Taking the time to clean and store your hydrofoil properly may seem tedious, but in the spectrum of kiteboarding, it pays off vastly. "An ounce of prevention is worth a pound of cure," as the saying goes. By investing time into the maintenance of your hydrofoil, you'll be ensuring not just its longevity, but also your enjoyment on the water.

Essential tools and products for hydrofoil maintenance displayed on a clean surface

Safety Considerations When Using Hydrofoils

Using a hydrofoil can be both exhilarating and demanding. However, safety should always be the number one priority for anyone venturing onto the water with this advanced equipment. The ever-present challenge is navigating the balance between excitement and caution. Hydrofoils elevate riders above the surface of the water, giving an experience that feels both magical and hazardous. Therefore, understanding safety considerations is crucial for ensuring an enjoyable ride without incidents.

Wearing Proper Safety Gear

When it comes to hydrofoiling, the right gear can make the difference between a good day on the water and a trip to the hospital. First and foremost, a well-fitted impact vest is essential. This not only provides cushioning against potential falls but can also save your life in the event of an accident. Additionally, a helmet is non-negotiable; it protects one's most vulnerable asset, the brain. Other accessories like wetsuits can provide warmth, but they also help in preventing abrasions or injuries from falls.

A good idea is to invest in gear that suits your level of experience and riding conditions. For beginners, ankle leashes might seem unnecessary, but they can be lifesavers. They keep the board close in rapid waters. More advanced riders might prefer freedom over restraint but should know when it’s wise to use a leash. Generally, following these safety checkpoints can ensure your ride tends to be smooth:

Wear an Impact Vest - Cushions impacts and aids flotation.
Always Use a Helmet - Protects against head injuries.
Consider Ankle Leashes - Keeps your board nearby.
Check Gear Regularly - Ensure everything is functioning well.

"Safety first may sound cliché, but in hydrofoiling, it’s the only practice that pays off."

Understanding Water Conditions

Before hitting the water, it’s essential to survey the conditions. Not all bodies of water are friendly to hydrofoilers. Factors like wind, waves, and currents play significant roles in determining whether conditions are suitable. An understanding of these elements can help avoid dangerous situations and enhance the riding experience.

Wind: Moderate winds are usually ideal for hydrofoiling, but gusty winds can catch riders off guard, causing sudden shifts in speed and control.
Waves: Riding in choppy waters can lead to instability, making it harder to maintain control of the hydrofoil. Some riders might like the challenge, but beginners should cautiously evaluate wave height.
Currents: Strong currents can pose real threats, pushing riders off course or dragging them into uncharted areas. Familiarizing oneself with local current patterns can prevent unexpected mishaps.
Weather Conditions: Always check forecasts, as storms can whip up unexpectedly, leading to dangerous riding conditions.

An understanding of current water levels and observing others can provide insights as well. It is vital to respect the limits of both your abilities and the equipment. Knowing when to wait for conditions to turn in your favor might be challenging, but it’s often the best call.

The Future of Clearwater Hydrofoils in Kiteboarding

The Clearwater hydrofoil has carved out a niche for itself in the fast-evolving world of kiteboarding technology. As kiteboarders become increasingly adventurous and demand more from their gear, the future of these hydrofoils seems incredibly bright. It’s not just about better speed or enhanced performance anymore; the technology is likely to open new doors, providing the chance for riders to experience a fundamentally different way to engage with the water.

In this exploration of the future, we will highlight specific innovations that are turning heads and shaping conversations among athletes, manufacturers, and enthusiasts alike. These advancements hold the potential to redefine what we consider possible on the water.

Technological Innovations on the Horizon

One significant aspect is the way technology is taking leaps in improving hydrofoil design. Manufacturers are continually integrating advanced materials and engineering techniques to create lighter and more robust hydrofoils. Innovations such as:

Advanced Composite Materials: These new materials not only reduce weight but, at the same time, bolster strength and durability. Some options include carbon fiber blends that allows for both flexibility and stiffness where needed.
Smart Technology Integration: Think about hydrofoils that can come equipped with sensors. These would allow real-time data tracking and feedback on performance and safety, providing riders with invaluable information at their fingertips.
Customizable Designs: In the future, we may also see more options for personalized hydrofoil designs tailored to individual rider preferences, skill levels, and conditions. Instead of one-size-fits-all, customization might foster a much deeper connection between the rider and their equipment.

As these technological advances come to fruition, it is crucial for kiteboarders to stay informed about these developments. After all, the more we know, the better we can adapt our riding techniques and preferences.

Evolving Riding Techniques

With advancements in hydrofoil technology, riding techniques are also expected to shift, inviting kiteboarders to fine-tune their skills in ways not previously imagined. Here are several evolving techniques that may soon take flight:

New Stance and Posture: As hydrofoils become more refined, riders may have to adjust their stance for better control and propulsion. A lower center of gravity could become the norm, changing how everyone approaches balance on the board.
Dynamic Power Management: Riders will likely learn to manage power in a more nuanced manner. This means mastering the art of adjusting kite positioning based on live feedback from the foil, leading to smoother transitions and quicker bursts of speed.
Tricks and Maneuvers: The potential for new tricks becomes vast as performance improves. Anticipating a well-executed jump or a spin while riding on a hydrofoil may be the natural progression as techniques become second nature.

As hydrofoil technology takes center stage, it's vital to keep pushing the envelope in both gear development and riding techniques. As kiteboarders, embracing these changes is key; not just to excel personally, but to contribute to the overall evolution of the sport.

"The future belongs to those who believe in the beauty of their dreams." – Eleanor Roosevelt. This encapsulates the spirit of kiteboarding with Clearwater hydrofoils. As we look ahead, it’s all about daring to dream and pushing the possibilities, one ride at a time.

Ending

The conclusion serves as a crucial wrap-up to our exploration of the Clearwater hydrofoil and its impact on kiteboarding. Throughout the article, we delved into various aspects that highlight the significance of these innovative designs. Understanding the intricate workings of hydrofoils is essential, as it illuminates the distinct advantages they offer, such as increased speed, enhanced maneuverability, and remarkable stability. These key points not only solidify the case for these designs but also underscore their importance in the evolution of kiteboarding.

Recap of Key Points

Here, we reflect on the fundamental takeaways from our discussion:

The Engineering Marvel: Clearwater hydrofoils are a culmination of advanced engineering and superior design, driving improvements in performance.
Advantages in Performance: Increased speed and agility on the water provide riders with a thrilling experience while offering better control in challenging conditions.
Versatility in Design: The variations in foil designs, materials, and sizes cater to a wide range of riders, each with unique requirments and preferences.
Maintenance Matters: Regular upkeep and proper storage extend the lifespan and effectiveness of the hydrofoil, ensuring optimal performance.
Safety First: Being attuned to water conditions and employing appropriate safety gear is imperative for any rider venturing out on the water.

Each of these points outlines the numerous considerations that must be acknowledged when engaging with these advanced technologies in kiteboarding. They don’t just represent tools, but rather keys to unlocking a new, exhilarating dimension to the sport.

Encouragement for Exploration

As kiteboarding enthusiasts embark on their journeys with Clearwater hydrofoils, exploration should be at the forefront of their experiences. Not only does this technology open new doors of performance and capability, but it also invites riders to step outside their comfort zones. It's essential to experiment with different foils to find the right fit and to enhance riding skills through practice.

There is also a strong community presence surrounding hydrofoil kiteboarding. Engaging with others via forums like Reddit or social media platforms fosters a spirit of learning and camaraderie. Sharing experiences, insights, and techniques can significantly enrich the overall riding experience.

In essence, kiteboarding with a Clearwater hydrofoil is just as much about the journey as it is about the thrill. As technology and techniques continue to evolve, riders are encouraged to embrace the adventure, challenge their limits, and celebrate their progress in the sport. Who knows what new horizons will be made in this ever-evolving realm of kiteboarding? The water awaits those daring enough to soar.

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A rider gracefully gliding over the water on a foil board