In one example, a board suitable for use in water sports includes a body that includes an upper surface and a lower surface. The board also includes a retractable fin connected to the body and configured to assume extended and retracted positions. In the extended position, a substantial portion of the retractable fin extends below the lower surface of the body, and in the retracted position, a substantial portion of the retractable fin resides within a recess at least partly defined by the body.