St Thomas is the gateway isle of the U.S. Virgin Islands in the Caribbean. A spectacular destination for its beaches and snorkeling spots. It`s a town with a busy cruise-ship port and historic buildings include a 1679 watchtower called Blackbeard`s Castle, in reference to the area`s pirate history. On the harbor, 17th-century Fort Christian is now a local-history museum. A modern paradise filled with colonial jewels, St. Thomas in the U.S. Virgin Islands is both a historian and an adventure-seeker`s playground. Indulge in some of the world`s prettiest beaches. Re-discover history in storied museums, forts and historic houses.