Abstract: A trailer caravan allows a motor home owner to tow a small automobile and boat in tandem relationship without exceeding overall length limitations. The tongue of a boat trailer is secured to the automobile trailer ahead of it by a pivot pin and a coacting tongue tie-down bar carrying two tongue radius adjusting bolts in opposing relationship to the opposite sides of the boat trailer tongue. Two tension springs are connected between the opposite sides of the boat trailer tongue and automobile trailer to assure proper tracking of the boat trailer while enabling the caravan to negotiate curves with safety.