Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Mansaku no Hana (万作の鼻) is a long boulder slope 30 minutes by boat from Chichijima in the Ogasawara Islands, Tokyo, with a maximum depth of 26 m and an average around 14 m. The dive drifts along with the current, and pelagics and schooling fish such as almaco jacks and yellowback fusiliers are often met, with Japanese and Lamarck's angelfish on the rock. Current runs here; intermediate and above.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Coral CardinalfishOstorhinchus properuptusReported here · unconfirmed
Yellow TangZebrasoma flavescensReported here · unconfirmed
Merulina ampliataReported here · unconfirmed
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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