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
100 Foot Hole lies along the southeast coast of Oahu near the Hawaii Kai and Portlock area, off the island's south shore, in a stretch known for its volcanic reef formations and typically reached by boat from nearby harbors. The site reaches a maximum depth of about 30.5 metres. Divers have also reported eagle rays passing through here.
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.
Eagle rayEagle rayReported here · unconfirmed
Thin-shelled Rock CrabGrapsus tenuicrustatusReported here · unconfirmed
Imperial NudibranchHypselodoris imperialisReported here · unconfirmed
Saddle WrasseThalassoma duperreyReported here · unconfirmed
Moorish IdolZanclus cornutusReported here · unconfirmed
Hawaiian Convict SurgeonfishAcanthurus triostegusReported here · unconfirmed
Hawaiian Spotted TobyCanthigaster jactatorReported here · unconfirmed
Pustulose Wart SlugPhyllidiella pustulosaReported here · unconfirmed
Wedgetail TriggerfishRhinecanthus rectangulusReported 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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