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
Arches sits off Niihau or the Kauai area of Hawaii, in the United States, based on its coordinates near 21.99 N, 160.05 W. The site reaches a maximum depth of around 10 metres and is generally considered an intermediate dive.
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.
Hump CoralPorites lobataReported here · unconfirmed
Saddle WrasseThalassoma duperreyReported here · unconfirmed
Spreading Rice CoralMontipora patulaReported here · unconfirmed
Blackfin ChromisPycnochromis vanderbiltiReported here · unconfirmed
Manybar GoatfishParupeneus multifasciatusReported here · unconfirmed
Arc-eye HawkfishParacirrhites arcatusReported here · unconfirmed
Orangeblotch SurgeonfishAcanthurus olivaceusReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported 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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