Full Moon Island

Full Moon Island, initially known as Crescent Moon Island, is one of the 11 islands accessible in The Great Sea in Paper Mario: The Origami King and is shaped like a circle on the sea chart (a crescent moon until the middle of the island is brought up). To bring up the middle of the island with the Earth Vellumental Power, Mario must fish up and defeat the Sidesteppers at the fishing spot. In the center of the island is an angel Toad statue, and is where the diamond- and circle-shaped symbols are found. The chest in front of the statue contains a Mushroom Handle and a note from Luigi saying, "Hey, Bro! Got the key! Come find me on the mushroom-shaped island!" The slab beneath both the statue and note contains an important message for continuing through The Great Sea.