A Winter Island with several extremely large flat-topped mountains. Following the Summit War, the Marines spent years reclaiming this island in order to force its local medical geniuses, the "Isshi-100", to work for them.
After holding out until about 5 years ago, these genius doctors were forced into Marine service to aid the island of Alabasta from an unknown plague. They have since been overseen by a veteran Marine Captain to ensure their compliance.