Superior Self Storage in Rio Vista offers enclosed storage spaces, as well as uncovered parking spaces for boats, recreational vehicles, motorcycles, automobiles, and commercial trailers & fleets. We offer Storage Units and RV Parking Spaces in a variety of sizes, so whether youâ??re looking for a large, enclosed space with a garage-style door and automatic remote, an outdoor parking space, or an interior unit to store accessories such as supplies for your RV or boat, bikes, chairs, life jackets, coolers, etc., youâ??ve come to the right place! Some enclosed units also have electrical outlets for added convenience.