A dual drive system for providing motive power to a watercraft has a frame configured for connecting to the watercraft and a drive assembly connected to the frame. The drive assembly has a manual drive mechanism configured for receiving mechanical input from a user, a motor drive mechanism configured for receiving mechanical input from a motor, a driveshaft having a first end in selective engagement with one of the manual drive mechanism and the motor drive mechanism and a second end in engagement with a propeller, and a drive selector for selectively engaging the manual drive mechanism or the motor drive mechanism with the driveshaft based on a position of the drive selector between first and second positions. In the first position, the drive selector engages the manual drive mechanism with a driveshaft. In the second position, the drive selector engages the motor drive mechanism with the driveshaft.

A method for housing a battery used on a light-weight, motor powered watercraft includes the step of: providing a battery case having: a pod sized to house a marine battery, the pod having a cavity for the marine battery and an open top; a lid for at least water-resistant closure of the open top of the pod, the lid having a cavity and an open bottom, the lid is releasably attachable to the pod; and a floor releasably attached to the lid adjacent the open bottom, the floor adapted to hold controls for the light-weight, motor powered watercraft.

A swiveling seat insert for kayaks allows a kayak user to physically turn their entire body while sitting in a kayak in order to gain a more advantageous body position for performing activities while using the kayak or for increased range of viewing angles.

The invention relates to a kayak comprising a light and stylish hull with a propeller mounted on the underside thereof, said propeller being actuatable by means of pedals mounted in front of and above a seat, the pedals and propeller being connected by means of a transmission that passes through the inside of the hull and below the surface thereof. Two rudders are arranged at the rear.

An accessory mounting track provides quick and easy removable attachment and positioning of various devices. The method of attachment of devices to the accessory mounting track may be compatible with the attachment of these devices to other mounting systems, allowing the accessory mounting track to be used interchangeably with those systems.

A display instrument 1 for a coxed rowing boat has a main-body 2 with a display head 3 displaying rowing-related measurements digitally at its front end, and a resilient partially-spherical extension 7 from its rear end. In the assembled instrument 1, the extension 7 is entered into an open-mouth 13 of a cup-receptacle 11 to be gripped resiliently surface-to-surface within a peripheral rim 14 of the mouth 13 so as to resists relative movement but allows manual adjustment of orientation of the main-body 2 relative to the receptacle 11 to facilitate the cox's view of the display. The receptacle 11 is entered in an aperture 16 of a dashboard 17 adjacent the cox's position 18 in the boat, and electronic circuitry of the instrument 1 is receptive of GPS signals to calculate boat and water-stream speeds for display.

A cylindrical receiver has an upper region with female screw threads, a lower region, and a centrally located washer. A cylindrical sleeve has an upper end with male screw threads threadedly coupled to the female screw threads of the receiver. A cylindrical passageway is formed between the receiver and the sleeve. A cylindrical stake is slidably received in the sleeve. A tether line couples the stake to a movable patch whereby when the movable patch is coupled to a fixed patch, the stake will be in a raised orientation and whereby when a user separates the movable patch from the fixed patch, the weight of the stake will lower the stake into a lower orientation into a sandy or rocky bottom.

A floatation device may include a bow section and a tail section pivotally connected to the bow section by a kingpin assembly. The kingpin assembly may be configured to include a positive kingpin inclination angle or a negative inclination angle that determine the yaw direction of the floatation device. A user may control the tilt or roll of the floatation device to offset a yaw direction and maintain a straight line tracking course.

The disclosed invention includes a device that receives and supports one or more storage containers mounted to a water craft. The device includes a frame, secured to the water craft, that includes a center frame and one or more outer frames with a width and length equal to the width and length of one or more complimentary storage containers, which provide equal distribution of weight to the frame to balance and contribute to the buoyancy of the water craft. In some embodiments, the frame may be transformed into a table.

The present invention relates to a rowing seat (1) for rowing and kayaking boats and exercise equipment, comprising a first face (2) adapted to support and carry a user, a second face (3) arranged opposite the first face, a first end (4) and a second end (5), a first side (6) and a second side (7), and a longitudinal axis (8) extending between the first end and the second end, wherein the first face (2) comprises a middle section (9) arranged substantially between the first and second sides (6, 7) and extending from the first end (4) towards the second end (5) with a length of at least 8 cm, the middle section (9) having a substantially convex support face (10) extending along the longitudinal axis, the support face (10) being adapted to support at least 50% of the user's weight during use of the rowing seat. The present invention also relates to a rowing, kayaking or exercise system comprising a rowing seat according to the present invention.