Overview

The Island of Oléron or Oléron Island  is an island off the Atlantic coast of France (due west of Rochefort), on the southern side of the Pertuis d'Antioche strait.

It is the second largest island of Metropolitan France, after Corsica, with a length of 30 km and a width of 8 km. It has an area of 174 km2 and more than 21,000 permanent inhabitants.