Boin Archipelago

The Boin Archipelago is a series of flower-shaped islands in the Grand Line. Within them are various gigantic bugs and vicious man-eating plants. It is said that anyone who enters this island has no chance of leaving it again. The islands are actually giant carnivorous plants scientifically known as "Stomach Baron." A group of giant beetles guard the edges.

The island Usopp was sent to is home to the swindling forest of Greenstone. It is known to have a forest made of food, called the Forest of Gluttony. This forest not only includes ordinary wild food such as Plum Trees and Corn Stalks but also a river of already prepared ramen.