Wine under the sea at the Crusoe Treasure Winery, Plentzia

The Underwater Winery is a unique experience in the world of wine. Here, in the depths of the Cantabrian Sea, wines are aged in an underwater environment, which gives them unique characteristics.

Find out about this fascinating process with a visit and tasting. Make the most of your route along the Basque coast to discover the world’s first underwater winery-artificial reef.