The Isles of Antillia were located westwards across the great Western Ocean, far beyond the known realms of Hyboria. The Antillian islands consisted of seven large islands in the Western Ocean between Hyboria and a much larger continent still farther to the west called Mayapan. It took Conan the Cimmerian and his crew of adventurers greater than two months to navigate to the islands aboard the Red Lion when they sailed westwards from Tortage.