Our Journey Planners have designed this cruise with a focus on the cultural traditions and history of Gibraltar, Spain and Portugal. Gibraltar guards the entrance to the Mediterranean; its eponymous rock is riddled with tunnels carved during the Great Siege in the 18th century, which make for fascinating exploration. In Cádiz, the birthplace of tapas, you can join a flamenco lesson with a local bailaora (flamenco dancer) while Lisbon is ideal for uncovering Portugal’s maritime history or learning how to make pastéis de nata with a local pastry chef. You can view historic sites from Borealis such as the Belém Tower and the Tower of Hercules, said to be the only Roman lighthouse in existence.