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
Koza Gawa River sits in Wakayama Prefecture, Japan, near the Kii Peninsula's southern coast. Diving here reaches a maximum depth of around 5 metres and is considered suitable for beginners.
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.
Festive Sea SlugHypselodoris festivaReported here · unconfirmed
Pikachu NudibranchThecacera pacificaReported 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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