Surfboards moved by user power

Surfboards moved by user power comprising:

• a surfboard body streamlined, when viewed from a plan view, concave grooves are formed on both sides, respectively;
• a propulsion body including:
• a first propulsion body formed with a first propulsion unit that is hinged to one side groove of the surfboard body and is formed inclined with respect to the surfboard body on a lower surface to generate propulsion force according to the movement of the user's feet;
• and
• a second propulsion body formed with a second propulsion unit that is hinged to the other side groove of the surfboard body and is formed inclined with respect to the surfboard body on a lower surface to generate propulsion force according to the movement of the user's feet;
• and
• a direction change unit including:
• a rotating shaft passing through the surfboard body;
• a handle disposed on an upper end of the surfboard body of the rotating shaft to rotate the rotating shaft;
• and
• a direction change key that is disposed on a lower part of the surfboard body of the rotating shaft and rotates together with the rotating shaft,
• wherein the direction change unit of surfboards moved by user power comprises a through hole passing through the surfboard body, a rotating member inserted into the through hole and rotated in a direction parallel to the surfboard body, a first folding part coupled to the rotating shaft on an upper portion of the rotating member to fold the rotating shaft, and a folding unit having a second folding part for folding the direction change key on a lower portion of the rotating member.