Wikipedia
Hahajima
is the second-largest island of the Ogasawara Islands or Bonin Islands south of the Japanese main island chain. It is about in area with a population of 440.
The highest points are Chibusayama, (literally "Breast Mountain"), approximately , and Sakaigatake, . The largest island of the group, Chichijima is located approximately to the north. Together with nearby smaller islands like Anejima and Imōtojima and Mukōjima, Hahajima forms the Hahajima Rettō (母島列島), or in former times, the "Baily Group".
The island is within the political boundaries of Ogasawara Village, Ogasawara Subprefecture, Tokyo, Japan.