A camper trailer or caravan (10) includes a chassis (12) adapted to be attached to, and towed behind a motor vehicle (11). A housing (21) is mounted on the chassis (12) and defines a main chamber including a peripheral wall. The chassis (12) is short in length and about the same width as the towing vehicle (11) with the wheels (19) located adjacent the rear end of the chassis (12), and the housing (21) is adapted be opened such that panels (41) folded inside the housing when in the closed configuration are adapted to form annex chambers (42, 43) when in the open configuration when the camper trailer (10) is being used for camping and the like. A sleeping chamber (23) associated with the main chamber extends outside the peripheral walls of said camper trailer when required. Preferably there is a kitchen chamber and a bedding chamber within the housing of the camper trailer.