Anijima Seto Strait
兄島瀬戸
The strait between Chichijima and Anijima, rich in coral reefs and tropical fish, and a popular spot for snorkeling and swimming with dolphins.
Anijima Seto is a strait about 500 meters wide between the northern tip of Chichijima and Anijima. Currents are fairly strong, and the water is exceptionally clear. The seabed is covered with extensive coral, where you often see sea turtles, hawkfish and schools of tropical fish, and dolphins frequently pass through as well. Anijima itself preserves the native dry scrub forest of the Ogasawara Islands and its unique land snails. It forms the core of the World Heritage site, so visitors generally do not go ashore. You can snorkel the strait from a sightseeing boat, or enter the water at Miyanohama and snorkel along the shore. When currents are strong, follow your guide's instructions.
Opening hours
Depends on sightseeing boat schedule
Nearby sights
- Nagasaki Observatory
- Miyanohama Beach
- Mount Asahi
- Ogasawara Marine Center
- Weather Station Observatory (Mt. Mikazuki)
- Ogasawara Visitor Center
- Omura Beach & Futami Port
- Sakaiura Bay & Hinko Maru Wreck