The watercraft has two parallel surfboards (28) arranged at a distance from each other and connected by means of a frame. The two legs of the frame which lie in the direction of travel have flexible elements (4), and the frame forms a diagonally braced rectangle. The flexible elements (4) and the diagonal bracing (13) considerably improve the travelling behavior of the watercraft. This becomes particularly effective at high speeds and when the surf boards are subjected to strong forces.
