Bonin Islands

The Bonin Islands, also known as the Ogasawara Islands, are a remote Pacific archipelago administered by Tokyo Prefecture, Japan, and lie roughly 1,000 kilometres south of the Japanese capital. The chain contains several inhabited and uninhabited islands and is notable for its high levels of endemism and distinct subtropical ecosystems.

The largest and principal inhabited island is Chichijima, which hosts the main port, airfield and most services; Hahajima and other smaller islands retain relatively intact native forests and bird populations. The islands are managed for conservation and have restricted access to protect native species and habitats.

The Bonin Islands’ isolation has produced many endemic plants and animals, making the archipelago important for biodiversity conservation and ecological research.

• Administrative Status: The islands are administered as part of Tokyo Metropolis despite being about 1,000 kilometres south of Tokyo and are noted for high levels of endemic biodiversity.
• World Heritage: The archipelago was inscribed as a UNESCO World Heritage natural site for its unique island ecosystems and endemic species.

What to See#

• Chichijima: Chichijima is the largest and only significantly inhabited island in the group, hosting the main port, airstrip and most services for visitors and residents.
• Hahajima: Hahajima is a smaller, less-developed island to the south that contains significant native forest and birdlife and limited visitor facilities.

The Bonin (Ogasawara) Islands are administered by Tokyo but lie far to the south with no airport; they are reached by ship from Tokyo. Regular passenger ferries (Ogasawara Kisen) depart from the Tokyo passenger terminals (Takeshiba/Tokyo areas) and the voyage takes about a day or more at sea; travel is by booked ferry only and schedules are seasonal.

• The Bonin (Ogasawara) Islands are reached only by the Ogasawara-maru ferry from Tokyo's Takeshiba Terminal - the voyage is long (about a day each way) so book ferry berths and island accommodation well in advance and plan to stay several days.
• Because many of the islands and their species are strictly protected, use licensed local operators for shore excursions and wildlife trips and check for any landing restrictions or guided-only access to certain islets.
• Aim for spring-early autumn for whale- and dolphin-watching and calmer seas, and choose operators who limit group sizes so you get better wildlife encounters and less impact on fragile habitats.