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
Chitosemaru Ne (千歳丸根) is a hidden reef off Kozushima in the Izu Islands, Tokyo, ringed by a drop-off to 30 m; advanced divers only, with current. Longtooth grouper and striped beakfish crowd even the narrowest rock crevices, and the usual schools of takabe and chicken grunt are present.
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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