Exclave
Vaud has one exclave, Avenches, bordered by Lake Neuchâtel, Fribourg and the tiny Bernese exclave of Clavaleyres.  The coast of Lake Neuchâtel is thus in seven pieces belonging to four cantons: clockwise from the north they are Neuchâtel, Bern (main), Vaud (Avenches exclave), Fribourg (main), Vaud (main), Fribourg (exclave), Vaud (main).