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
Arima (割間) is a site off Kozushima in the Izu Islands, Tokyo, with a strong contrast of white sand and blue water. It is one of the likelier spots for pelagics, and the sand holds gobies living with snapping shrimps, large marbled rays and schooling bannerfish; suitable from beginner level, with some current. It works for macro and wide-angle alike.
Marine 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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