Patent ID: 7238073

Claim:
A structure to be towed in a body of water, the structure comprising: an air inflatable, non-rigid first bladder having an upper surface and a lower surface spaced apart from the upper surface with an air-filled space therebetween, with the upper surface forming a platform sized to flexibly support at least one rider thereon; at least three spaced apart buoyant air inflatable, non-rigid second bladders; a flexible shell, the shell having the first bladder and the second bladders positioned and securely retain therein during towing of the structure without use of rigid support frame members, the first bladder being non-rigidly retained relative to the second bladders, the second bladders extending from the location of the first member bladder downward and having sufficient buoyancy such that when the second bladders are placed in the body of water, the first bladder remains elevated above the body of water to define an air space between the lower surface of the first bladder and the body of water when the body of water has a level water surface; and a tow line attachment attached to the shell.