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
Nagasaki (長崎) is a sand-and-coral site 25 minutes by boat from Chichijima in the Ogasawara Islands, Tokyo, with a maximum depth of 25 m and an average around 10 m. The bottom is flat around the mooring buoy but steepens sharply toward the open sea, where a rock holds anthias and garden eels live in the sand, with glasseyes and damselfish also present. Current runs at times and the site is suitable from beginner level.
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
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
No notes yet. Dived here? Be the first to leave a tip.
Share a write-up or a photo. Submissions are reviewed before they appear on the page.
Nearby dive sites
Shops that dive here
No shops have listed this site yet.