Immerse yourself in the aquatic treasures of the Pays de la Loire and the Dordogne for an unforgettable exploration of the region's castles, culture, and cuisine, including the world's most expensive potato.

From Biarritz's luxurious charm and innovative gastronomy to discovering underwater-aged wine, and preparing a delicious Basque feast, this unforgettable final episode sees Guillaume delve into the captivating world of the pays Basque.