In one example, a watercraft includes a hull that defines a well extending through a bottom of the hull, and the hull defines an upper tray recess and a lower tray recess. A pedal-drive mechanism is connected to the hull and configured to assume both a stowed position and a deployed position, and a portion of the pedal-drive mechanism extends through the well when the pedal-drive mechanism is in the deployed position. A pedal-drive housing and attachment mechanism is provided that includes a tray configured to move between a forward position in which part of the tray resides in the lower tray recess, and an aft position in which part of the tray resides in the upper tray recess.

A unique watercraft that includes a plurality of flotation elements which are aligned longitudinally and fit together end to end, comprising the watercraft hull. Unlike other watercraft, it does not rely upon a low center of gravity for stability. A front flotation element pivots about an axis and this pivotal motion is used for both steering and for maintaining balance. The effective profile of the hull changes dynamically as the front flotation element is turned. These hull changes allow the operator to balance and make agile maneuvers. Equilibrium can be easily maintained in this manner when the watercraft is moving forward and when it is otherwise stationary in water. In a preferred embodiment, the watercraft is ridden like a bicycle. Balance is actively maintained by a rider who steers right and left to adjust transverse weight distribution. The riding experience feels similar to operating a conventional bicycle on land.

A unique watercraft that includes a plurality of flotation elements which are aligned longitudinally and fit together end to end, comprising the watercraft hull. Unlike other watercraft, it does not rely upon a low center of gravity for stability. A front flotation element pivots about an axis and this pivotal motion is used for both steering and for maintaining balance. The effective profile of the hull changes dynamically as the front flotation element is turned. These hull changes allow the operator to balance and make agile maneuvers. Equilibrium can be easily maintained in this manner when the watercraft is moving forward and when it is otherwise stationary in water. In a preferred embodiment, the watercraft is ridden like a bicycle. Balance is actively maintained by a rider who steers right and left to adjust transverse weight distribution. The riding experience feels similar to operating a conventional bicycle on land.

A housing for use in a floatation device comprises first and second rectangular portions each having four sides. Three sides of the first rectangular portion are coupled to three sides of the second rectangular portion, and a fastener such as a zipper is coupled to the fourth sides of the first and second rectangular portions. The housing may be made of materials having high strength and resiliency such that they are not easily torn, popped, punctured, rent, or otherwise damaged by claws over the course of repeated use, such as by a dog. The fastener may be opened or closed to allow or block access to an internal cavity within the housing. The internal cavity is configured to accommodate a plurality of pool noodles that provide the housing and the floatation device with buoyancy and with a continuous buoyant floor on which a person, dog, or other animal can be supported within a body of water. The housing may include a plurality of dividers that divide the internal cavity into a plurality of internal sub-cavities.

The device of the present invention allows a user to float in a body of water while avoiding the harmful effects of the sun, and without having to physically hold his or her beverage, cellphone etc. More specifically, the foldable, portable, floating sun shade device provides a place for the user to keep a beverage, cell phone and other devices or products within arms-length. The floating sun shade device is also capable of collapsing into a compact position for easy and convenient transportation and storage.

A personal watercraft includes a floatation member, a thrust assembly, a steering assembly, and a braking assembly. The assemblies may be actuated either mechanically or electrically. The thrust assembly is human powered, solar powered, or electric powered. The thrust, steering, and braking assemblies can be added after-market to an existing stand-up paddle board (SUP), or built into one or a plurality of SUPs during initial manufacturing. When the thrust assembly is human powered, it is leg or arm powered. When the thrust assembly is leg powered, the legs can move backward and forward in a sliding motion, up and down in a stomping fashion, or move in a loop trajectory. When the thrust assembly is arm powered, the arms can move forward/backward together or separately. The thrust assembly includes one or a plurality of paddles or flippers that are positioned to the side or under the SUP.

A catamaran for a wheelchair has two parallel pontoons secured abeam a bow beam and a wheelchair engaging framework for selective attachment and submersion of a wheelchair in water between the pontoons behind the bow beam in use. The catamaran is able to engage a wheelchair in a simple and convenient manner for recreational water sport use by those of limited mobility.

A system may include an inflatable towable vehicle. The inflatable towable vehicle may include a spinner apparatus attached to a bottom side of the inflatable towable vehicle. At least a portion of the spinner apparatus may be configured to be submerged when the inflatable towable vehicle is towed in water. The spinner apparatus may include: a base configured to abut the bottom side of the inflatable towable vehicle when the spinner apparatus is attached to the bottom side of the inflatable towable vehicle; a post extending away from the base; a cylindrical tube, wherein the post may extend through the cylindrical tube, wherein the cylindrical tube may be configured to rotate around the post; and a tow rope attachment member attached to and extending from the cylindrical tube. The inflatable towable vehicle may be configured to rotate as the inflatable towable vehicle is towed.

A system may include an inflatable towable vehicle. The inflatable towable vehicle may include a spinner apparatus attached to a bottom side of the inflatable towable vehicle. At least a portion of the spinner apparatus may be configured to be submerged when the inflatable towable vehicle is towed in water. The spinner apparatus may include: a base configured to abut the bottom side of the inflatable towable vehicle when the spinner apparatus is attached to the bottom side of the inflatable towable vehicle; a post extending away from the base; a cylindrical tube, wherein the post may extend through the cylindrical tube, wherein the cylindrical tube may be configured to rotate around the post; and a tow rope attachment member attached to and extending from the cylindrical tube. The inflatable towable vehicle may be configured to rotate as the inflatable towable vehicle is towed.