Brain Freeze Island (ブレイン・フリーズ島, Burein Furīzu-jima) is a Winter Island located somewhere in the grandline, famous for have the most coldest and refreshing drinks in the world. The island is the home and base of operations for the Nakigara Pirates and is the birthplace of Mukuro. Originally the island was under the protection of Whitebeard, however after his death Mukuro and crew had taken over.