Abstract: The disclosed device provides a rowing capability to an off-the-beach type sailing vessel having a hull including a top surface and a recess, such as for example a footwell or center board opening, formed therein. The device includes a horizontally extending seat surface, and an insert member connected to the seat member and received in one of the vessel's recesses, thereby to secure the seat surface to the vessel. The insert member includes a pair of oppositely extending outrigger support structures respectively having oar locks mounted therein for receiving a rowing oar. When the insert is positioned in the hull recess the vessel can be rowed by a person seated on the device of the invention.