This week Neven visits the Alentejo region in southern Portugal. Neven’s first stop is the Ervideira Winery which has a very unusual way of producing wine. When it has been bottled, the wine is stored and aged deep underwater in the Alqueva Lake which is the largest artificial lake in the European Union. Neven meets the current Director Duarte Leal da Costa and his son Duarte Maria Alvarenga as they retrieve their ‘Water Wine’ from the bottom of the lake.