Firs Island

Firs Island is one of the Endpoints and a Marine Base in the New World.

History
During Shuzo's defeat against Luffy and his imprisonment in Impel Down, Zephyr arrives at Firs Island.

At the start of One Piece Film Z, Zephyr attacks the Marine base on this island to steal the Dyna Stones. During the battle against Borsalino, Zephyr uses one of the Dyna Stones to destroy the island.

Trivia

 * Its name is a pun. When you read it with japanese suffix "-to" (島, literally meaning "Island") it can be read as "First", refering to it being the first Endpoint to be shown.