A watercraft includes at least one floating member, a central frame supported thereon, first and second foot platforms, and first and second handlebars. The first and second handlebars define elongated configurations and include grasping end portions, intermediate portions pivotably coupled to the central frame, and base end portions pivotably coupled to first end portions of the respective first and second foot platforms. A propulsion system includes an axle assembly, first and second rotating arms, and first and second oars. The rotating arms are fixed relative to one another, pivotably coupled about the axle assembly at first ends, and pivotably coupled to second end portions of the foot platforms at second ends. The oars are engaged with and extend from the foot platforms. The propulsion system cycles the oars approximately 180 degrees out of phase to propel the watercraft while maintaining substantially perpendicular orientation of the oars.

A flotation system, including a plurality of flotation shoes to float on a body of water, the plurality of flotation shoes including a first shoe to receive a first foot of a user therein, a second shoe to receive a second foot of a user therein, and a plurality of connecting members removably connected to at least one of the first shoe and the second shoe to bind the first shoe to the second shoe, and a support device to facilitate at least one of walking on a ground surface and movement on the body of water.

A flotation system, including a plurality of flotation shoes to float on a body of water, the plurality of flotation shoes including a first shoe to receive a first foot of a user therein, a second shoe to receive a second foot of a user therein, and a plurality of connecting members removably connected to at least one of the first shoe and the second shoe to bind the first shoe to the second shoe, and a support device to facilitate at least one of walking on a ground surface and movement on the body of water.

The invention relates to floating devices for leisure and sports, and more particularly to water skis equipped with hydrofoils. The technical result is as follows: using claimed device, the user can travel not only on the water surface, but also on land without removing skis, as well as glide on hydrofoils or in a conventional water ski mode, and perform acrobatic maneuvers. The present device for the practice of a water sport comprises a pair of water skis. Each ski is comprised of a nose part and a tail part. The nose part is connected to the tail part by means of hinged fastenings. Water skis are equipped with a hydrofoil that can be flush with the bottom surface of the water ski.

The invention relates to floating devices for leisure and sports, and more particularly to water skis equipped with hydrofoils. The technical result is as follows: using claimed device, the user can travel not only on the water surface, but also on land without removing skis, as well as glide on hydrofoils or in a conventional water ski mode, and perform acrobatic maneuvers. The present device for the practice of a water sport comprises a pair of water skis. Each ski is comprised of a nose part and a tail part. The nose part is connected to the tail part by means of hinged fastenings. Water skis are equipped with a hydrofoil that can be flush with the bottom surface of the water ski.

A personal bipedal watercraft includes a pair of skis. Each ski of the pair of skis includes a floating hull. A deck is secured to the hull. A binding on each deck is configured to receive a foot of a user. A plurality of paddle assemblies are moveably secured to an underside of the floating hull. The paddle assemblies each include a blade and a fin.

Manually propelled water skis support a person skiing on water. The water ski includes a base having a binding on an upper surface and stationary propulsion structures with uniform height on the bottom surface. The propulsion structures include a rearward facing and vertical propulsion surface and a forward facing and sloped surface such that drag is greater when the water ski is moved rearwardly. The propulsion surface may be arcuate, V-shape, U-shaped, or other shaped in a horizontal plane and may also be circularly concave in a vertical plane. Buoyancy structures may be secured to the upper surface of the base forward and rearward of the binding. Water ski poles including elliptically- or cylindrically-shaped floats at the bottom ends may be used to provide a synergistic increase in waterskiing speed. Straps on the base near the binding may be used to secure the water ski poles to the base in order to form an outrigger.

Manually propelled water skis support a person skiing on water. The water ski includes a base having a binding on an upper surface and stationary propulsion structures with uniform height on the bottom surface. The propulsion structures include a rearward facing and vertical propulsion surface and a forward facing and sloped surface such that drag is greater when the water ski is moved rearwardly. The propulsion surface may be arcuate, V-shape, U-shaped, or other shaped in a horizontal plane and may also be circularly concave in a vertical plane. Buoyancy structures may be secured to the upper surface of the base forward and rearward of the binding. Water ski poles including elliptically- or cylindrically-shaped floats at the bottom ends may be used to provide a synergistic increase in waterskiing speed. Straps on the base near the binding may be used to secure the water ski poles to the base in order to form an outrigger.

A watercraft includes at least one floating member, a central frame supported thereon, first and second foot platforms, and first and second handlebars. The first and second handlebars define elongated configurations and include grasping end portions, intermediate portions pivotably coupled to the central frame, and base end portions pivotably coupled to first end portions of the respective first and second foot platforms. A propulsion system includes an axle assembly, first and second rotating arms, and first and second oars. The rotating arms are fixed relative to one another, pivotably coupled about the axle assembly at first ends, and pivotably coupled to second end portions of the foot platforms at second ends. The oars are engaged with and extend from the foot platforms. The propulsion system cycles the oars approximately 180 degrees out of phase to propel the watercraft while maintaining substantially perpendicular orientation of the oars.

The present invention provides a connecting device for connecting at least two floating bodies, in particular at least two stand-up paddle boards, side by side, comprising: a linkage having at least one rod; and a plurality of fastening means arranged on the at least one rod of the linkage, at least some of the plurality of fastening means being provided axially displaceable along the axis of the at least one rod of the linkage adapted to the respective geometry of the at least two floating bodies such that each floating body can be clamped between at least two fastening means on the at least one rod of the linkage in a positionally stable manner.