A motorized board similar to a surf board is presented for use on a water surface. The motorized board includes a base board having a front end and a back end, a foot pedal on the base board, wherein the foot pedal is rotatable on the base board, and a motor coupled to the base board and connected to a propeller at the back end, the motor being controlled by the foot pedal. A user can stand on the board and turn the motor on with his foot, as well as control the speed with his foot to ride on a water surface with or without waves.

A towable recreational craft having a body member for accommodating one or more riders in a prone position is disclosed. One or more stabilizing members are movably coupled to and extend away from an aft portion of the body member. Each stabilizing member includes a foot-accommodating portion spaced apart from the body member, wherein the stabilizing member is movable between a position extending away from the aft portion of the body member and a position adjacent a lateral portion thereof to provide greater stability as the craft is towed.

A water window apparatus including a main water window element, and a plurality of retaining flanges, along with interlocking teeth that fixedly communicate with one another to fixedly retain the main water window there between. The main water window is hollow, as well as monolithic and hermetically sealed to maintain its integral buoyancy, and further has a top that includes a magnifying element that imparts magnification when viewed therethrough.

A wearable device for personal locomotion on the surface of the water. This device consists of two skates with each designed to be worn on a single foot. Each skate is separately mobile and allows for free movement on the surface of water. Locomotion is made possible by the addition of mechanical scoops that provide a forward force generated by motion of the skates, or by addition of a propeller or similar system. The double-pontoon structure of each skate ensures stability that is not strongly reliant on users' skill.

A transportation tool is configured to carry a rider. A sensor detects weight shifts of the rider on the body of the transportation tool. A controller, based on information from the sensor, generates control signals for an unmanned aerial vehicle. A communication device communicates the control signals to the unmanned aerial vehicle. A cable attaches to the aerial vehicle and to the rider or the body of the transportation tool.

A skiing accessory comprises a support structure, a mounting arrangement and a lift member. The support structure is configured to support a user relative to a body of water. The mounting arrangement is configured to connect the support structure to a ski boom. The lift member is arranged on the support structure and configured to engage the body of water such that the support structure is raised or lifted, relative to the body of water, by the lift member as the accessory is towed. The mounting arrangement permits the support structure to be pivotally connected to the ski boom about an axis that is generally parallel to the ski boom.

A water window apparatus including a main water window element, and a plurality of retaining flanges, along with interlocking teeth that fixedly communicate with one another to fixedly retain the main water window there between. The main water window is hollow, as well as monolithic and hermetically sealed to maintain its integral buoyancy, and further has a top that includes a magnifying element that imparts magnification when viewed therethrough.

A lateral flex sports board includes an elongated load supporting board having a top major surface, the top major surface configured to support a user, wherein the elongated load supporting board includes a portion that flexes transversely to the top major surface.

A water ski with improved torsional characteristics delimited on the upper side by the upper surface, on the bottom side by a concave surface and on the sides by curvilinear sidewalls. The ski has a tip at the front side and a tail on the rear side. On the central part of the ski, on the upper surface, a longitudinal groove is provided having a flat bottom surface connected with vertical longitudinal sides of the groove by rounded surfaces, wherein the groove decreases torsional and flexural strength, which depth and width reduce torsional and flexural stiffness of the central part of the ski. The width of the groove may be 30-80% of the width of the ski, and the depth of the groove may be 20-95% of the thickness of the ski.

A sports board that includes an elongate, water impervious, thermoplastic foam core having an upper surface and an under surface; an upper layer covering at least a portion of the upper surface; and an under layer covering at least a portion of the under surface. The foam core is made of a foamed material having a water absorption (measured according to ASTM C-272) of less than 2 volume percent.