The first vintage of Leclerc Briant’s Abyss was in 2012. The cuvée takes its name from its unique ageing: it is stored 60 metres under the sea off the coast of Brittany for up to a year. Leclerc Briant considers this the ideal environment for the maturation of Champagne, devoid as it is of oxygen and light. Prior to submersion, the wine was aged for 10 months in second-fill oak barriques quietly sourced from some top estates in Bordeaux.