G-16 is one of the most notable Marine Bases located in New World, one hour sailing to the Calm Belt near West Blue as well as the main home for the G-16 Squad. It is a island, being drawn by small Sea Kings through the New World and large Sea Kings near the Calm Belt.The island itself has forest and large mountains surrounding it, upon which a massive castle is in the center. It is also slightly shaped like a mango. The only way to enter the island is underwater. The G-16's commanders code to the headquarters is 0420.