Abstract: Rowing device, especially a rowing device to be fastened on a wind surf board, comprising a framework (1), a fixed seat (7) fastened to the framework (1) and a foot support unit (2) movable in the framework (1) longitudinally with respect to the seat (7), as well as foot supports (6). The foot support unit is provided with detachable rowlock supports for oars. The rowing device can also be used as an independent rowing exerciser. This is accomplished with fastening members (4a, 14, 15) for a combination of a pump cylinder (10) and an oar lever (9b).