1. A VEHICLE OF THE CHARACTER DESCRIBED COMPRISING A BODY-SUPPORTING PLATFORM, SAID PLATFORM COMPRISING A FRAME INCLUDING SPACED SIDE MEMBERS, A FABRIC WEB SUPPORTED BETWEEN SAID SPACED FRAME SIDE MEMBERS, A PAIR OF FLOATS, EACH COMPRISING A PNEUMATIC CUSHION FORMED WITH A SMOOTH-SURFACED, SURFACE-CONTACTING BOTTOM SECTION, MEANS SUPPORTING ONE OF SAID FLOATS AT ONE END OF SAID PLATFORM COMPRISING SPACED, RIGID ROD ELEMENTS SECURED TRANSVERSELY OF SAID PLATFORM AT ONE END THEREOF, AND MEANS PROVIDED ON THE UPPER PORTION OF SAID FLOAT ENGAGEABLE OVER SAID SPACED ROD ELEMENTS, A SECOND PAIR OF ROD ELEMENTS, AND MEANS CONNECTING SAID ROD ELEMENTS TO ONE ANOTHER, SAID SECOND PAIR OF ROD ELEMENTS PIVOTALLY SUPPORTED AT THE OPPOSED END OF SAID PLATFORM FOR ROTATION IN A PLANE PERPENDICULAR TO SAID PLATFORM, SAID SECOND FLOAT HAVING MEANS PROVIDED ON ITS UPPER PORTION ENGAGEABLE OVER SAID SECOND PAIR OF ROD ELEMENTS.