The present invention provides devices and kits for modifying a standard surfboard into a motorized surfboard, utilizing a detachable modular underwater power unit, wherein said underwater power unit is configured to be attached to various standard fins or a fin unit, and wherein the underwater power unit is further configured be utilized for diving and/or swimming applications.

A seat made of drop stitch material has a back panel, a bottom panel, and a support panel, where the back and bottom panels are adjustably and detachably connected to each other at a substantially orthogonal orientation, and the support portion tilts or reclines the seat into a recumbent position which is advantageous for paddling while sitting on the upper surface of a watercraft.

Embodiments of water activity board 10 that may be configured with several components 210A-H to form a WABS 200, where the components 210A-H may be securely and removably coupled to the board 10 via one or more rail modules 100A-I. Other embodiments may be described and claimed.

Wakeboat hull control systems and methods are provided to permit the accurate reproduction of a wake behind a wakeboat. The onboard wake control system receives data from a draft measuring system. Incorporation of the data from the draft measuring system permits accurate reproduction of a wake behind the wakeboat after a change in an onboard variable such as the number, weight or position of passengers, the weight or position of cargo and the position of trim tabs or amount/location of ballast.

Wakeboat hull control systems and methods are provided to permit the accurate reproduction of a wake behind a wakeboat. The onboard wake control system receives data from a draft measuring system. Incorporation of the data from the draft measuring system permits accurate reproduction of a wake behind the wakeboat after a change in an onboard variable such as the number, weight or position of passengers, the weight or position of cargo and the position of trim tabs or amount/location of ballast.

A boat including one or more seats, which may be aft-facing. The seat includes a seat bottom, which may be movable between a first position and a second position. The second position is a position in which the seat bottom is pivoted upwardly relative to the position of the seat bottom in the first position to allow access to a hidden compartment. The seat may also include a leg rest. The leg rest may extend aft of the transom, and may extend in a direction that is at a downward angle relative to the seat bottom. The leg rest may also have a length such that a gap is present between the leg rest and a surface beneath the leg rest.

A boat including one or more seats, which may be aft-facing. The seat includes a seat bottom, which may be movable between a first position and a second position. The second position is a position in which the seat bottom is pivoted upwardly relative to the position of the seat bottom in the first position to allow access to a hidden compartment. The seat may also include a leg rest. The leg rest may extend aft of the transom, and may extend in a direction that is at a downward angle relative to the seat bottom. The leg rest may also have a length such that a gap is present between the leg rest and a surface beneath the leg rest.

A device for attachment to a rideable object upon a water surface, such as, but not limited to a paddleboard, to provide a grasping surface and foothold to aid in righting and boarding the rideable object. The device is configured for universal use, wherein it is adjustable for multiple sizes and types of rideable objects or paddleboards. The device is comprised of a connecting portion having a first end and a second end opposed the first end. The connecting portion includes a selectable position and attachment means to enable fixing the device to the rideable object. A second end of the device includes a loop member configured to dangle below the rideable object to provide a foothold for boarding and righting the object.

An inflatable stand up paddleboard, combined with a thermally insulated compartment is disclosed herein. The compartment may be used for storage of food, drink, personal effects, and other items that may require storage in a temperature stabilized medium. As constructed, the compartment and storage of items therein does not diminish the functionality or versatility of the inflatable paddleboard.

An inflatable stand up paddleboard, combined with a thermally insulated compartment is disclosed herein. The compartment may be used for storage of food, drink, personal effects, and other items that may require storage in a temperature stabilized medium. As constructed, the compartment and storage of items therein does not diminish the functionality or versatility of the inflatable paddleboard.