Boin Archipelago

The Boin Archipelago is a series of flower shaped islands in the the Grandline. Within them are various gigantic bugs and vicious man eating plants. Usopp landed on one of these islands after being sent flying away by Bartholomew Kuma. In that island there is the swindling forest of Greenstone.

the only known resedent so far are a giant stag beetle, heracles and some carnivous plant.