Catan: Seafarers – 5-6 Player ExtensionExpansion

From BoardGameGeek:

Now five to six players can sail into the uncharted and explore and settle the mysterious islands near Catan! The 5-6 Player Expansion for The Seafarers of Catan allows you to add 1-2 more opponents without sacrificing ease of play. Try one of ten new exciting scenarios! Designed for 5-6 players, it adds even more drama to the award-winning game of seafaring, exploration, and trade. Belongs to the Catan Series. This game requires Catan, Catan 5/6 player extension, and Catan: Seafarers to play. Ideally using the same publisher and edition of the game.