Motorized surfboard device

A motorized surfboard device that can be ridden by a rider, the motorized surfboard device comprising:

• a surfboard comprising an underside surface and a top side surface;
• a motive device mounted on the underside surface of the surfboard, the motive device comprising a motor and a rotatable propeller, the motor being operably connected to the rotatable propeller for rotating the rotatable propeller, the rotatable propeller comprising:
• a cylindrical body with a surface configuration, the surface configuration comprising at least one groove in a surface of the rotatable propeller body, wherein the at least one groove defines raised ridges between the at least one groove, the edges of the grooves being rounded, the at least one groove comprising a depth;
• a guard, the guard comprising a body that encircles at least a portion of the propeller to cover the propeller, wherein the guard permits water to contact the propeller while protecting a rider from inadvertent contact with the propeller;
• and
• a control apparatus comprising at least one of a foot-controlled switch, a hand-operated and controlled steering column, and a hand controlled switch, the control apparatus controlling at least one of on/off operation of the motor and variable speed of the motor, wherein a rider of the motorized surfboard device can ride the surfboard without waves.