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.
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About this site
Kozushima is a volcanic island in the Izu archipelago, part of Tokyo Metropolis despite lying roughly 180 kilometers south of the capital in the Philippine Sea. Its surrounding waters are considered suitable for beginners. The island is reached by ferry or jet boat from Tokyo or Atami, and the coastline is marked by rocky volcanic terrain typical of the Izu island chain.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Roundbelly CowfishLactoria diaphanaReported here · unconfirmed
Decumbent Spanish DancerHexabranchus lacerReported 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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