The Island of the Cloak of Caladonis was a remote island around a very rough sea. The island had several features, including the tree that held the Cloak of Caladonis and the serpent that guarded it. The island was visited by Jack Sparrow and the crew of the Black Pearl at one point. They had a small skirmish with the serpent. In the end, the serpent successfully defended the Cloak, but was rendered immobile when Sparrow cut a tree that landed on its back. The tree on the island also contained a Branch that was said to point to another treasure.