A rowing shoe fastening assembly includes a receiving plate and a shoe plate configured to be mounted on a portion of a shoe. The shoe plate has a release tab and the shoe plate is engaged in a locked position within the receiving plate by a single interlocking movement. The shoe is released from the locked position by activating the release tab and sliding said shoe plate past the receiving plate in a parallel direction relative to the receiving plate.

A rowing shoe fastening assembly includes a receiving plate and a shoe plate configured to be mounted on a portion of a shoe. The shoe plate has a release tab and the shoe plate is engaged in a locked position within the receiving plate by a single interlocking movement. The shoe is released from the locked position by activating the release tab and sliding said shoe plate past the receiving plate in a parallel direction relative to the receiving plate.

Disclosed is a human powered water walker having a plurality of two-position flippers for effecting propulsion and steering of the water walker when the same is is actuated by human power. Each of the flippers is beveled at its front end and has at its rear end a downwardly beveled tab. The water walker may have two interlaced boyant ski trimarans to which the flippers are connected.

Disclosed is a human powered water walker having a plurality of two-position flippers for effecting propulsion and steering of the water walker when the same is is actuated by human power. Each of the flippers is beveled at its front end and has at its rear end a downwardly beveled tab. The water walker may have two interlaced boyant ski trimarans to which the flippers are connected.

An inflatable oar frame and methods of making and using an inflatable oar frame adapted to removably mount over a watercraft interior, wherein oar towers can couple to the inflatable oar frame to provide an interface between the oars and the watercraft.

An inflatable oar frame and methods of making and using an inflatable oar frame adapted to removably mount over a watercraft interior, wherein oar towers can couple to the inflatable oar frame to provide an interface between the oars and the watercraft.

A device includes a cleat and a receiver. The cleat is mountable to a shoe and includes a front portion and a rear footing. The receiver is mountable to a support of an external device. The receiver includes a frame including a front portion and a rear portion, with the rear portion configured to removably slidably receive the rear footing of the cleat. The front portion of the receiver includes a catch element, which is pivotally movable relative to the frame while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the frame of the receiver.

A device includes a cleat and a receiver. The cleat is mountable to a shoe and includes a front portion and a rear footing. The receiver is mountable to a support of an external device. The receiver includes a frame including a front portion and a rear portion, with the rear portion configured to removably slidably receive the rear footing of the cleat. The front portion of the receiver includes a catch element, which is pivotally movable relative to the frame while under a rotational biasing force in a first orientation, to permit slidable entry of, and retention of, the front portion of the cleat relative to the frame of the receiver.