The Geay family has been established at Marennes-Oléron’s basin for five generations. Marennes-Oléron’s basin is situated between the Atlantic ocean, Oléron island and the river Seudre. This location is ideal as the ocean drags water rich in sediments and phytoplankton. What is really special about this area is the presence of claires, a technical word defining old salt marshes that have been used to refine oysters since the middle of the 19th century. The ground, which is made of clay and the abundance of phytoplankton, impart a unique taste to Geay oysters.