A toy boat includes a screw 29 driven by a driving source 26, a screw bracket 30 configured to support the screw 29 and function as a rudder, and a servo mechanism 31 configured to turn the screw bracket 30 towards a horizontal position, wherein the driving source 26 is mounted on the inner side of a boat body 22, and the servo mechanism 31 is housed in a housing 31a on which the screw bracket 30 is mounted.