The island of Re itself is really worth a visit. A few charming ports linked by a network of pathways to be explored- of course- by bike- criss-crossing the sandy earth. Saint Martin- surrounded by the Vauban fortifications- is the best place to stop. Your base a 17th century shipbuilders residence with windows overlooking the port. The mast of a fishing boat may perhaps disturb your views of the setting sun. But would that really bother you.