Cézon island is accessible at low tide and is part of a set of islets, some of which are well known:
Guénnioc (prehistoric remains)
Stagadon (former seaweed farm)
L’ile Vierge (the tallest lighthouse in Europe)
L’ile Wrac’h (semaphore, artists' residence)
l’Ile aux américains (former seaplane base during WW1)