Abstract: A recreational vehicle is equipped with a portable platform which lies alongside the vehicle upon the ground in its deployed position and which is stowed beneath the vehicle during transport. The platform is moved between the stowed and the deployed position with a reversible motor. Manual deployment is possible in the event of absence of power for the motor. Energy storage means are used to reduce the required motor capacity. The platform may be made of multiple hinged elements suitable for unfolding on the ground in the deployed position and folding together in a stacked arrangement in the stowed position. A ramp is provided for wheelchair access to the platform.