Chausey is a group of small islands, islets and rocks in the English Channel, off the coast of Normandy, France. The archipelago comprises 365 islands at low tide, but only 52 island at high tide. Grande-Île, the main island, is 0.93 miles (1.5 km) long and 0.3 miles (0.5 km) wide at its widest. It is the only inhabited island in the Chausey group, with roughly 30 residents