Hammerhead Mesa
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
Hammerhead Mesa sits along the outer slopes of Rangiroa, one of the largest atolls in the Tuamotu Archipelago of French Polynesia, in the general area accessed by boat from the villages of Avatoru or Tiputa near the atoll's passes. Divers here have reported a varied mix of reef fish including bignose and paletail unicornfish, Moorish idols, raccoon butterflyfish, scissortail sergeants, humpback snapper, and titan triggerfish, along with larger species such as giant moray, Napoleon wrasse, and common bottlenose dolphins.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Common Bottlenose DolphinTursiops truncatusReported here · unconfirmed
Paletail UnicornfishNaso brevirostrisReported here · unconfirmed
Titan TriggerfishBalistoides viridescensReported here · unconfirmed
Napoleon WrasseCheilinus undulatusReported here · unconfirmed
Giant MorayGymnothorax javanicusReported here · unconfirmed
Humpback SnapperLutjanus gibbusReported here · unconfirmed
Moorish IdolZanclus cornutusReported here · unconfirmed
Scissortail SergeantAbudefduf sexfasciatusReported here · unconfirmed
Raccoon ButterflyfishChaetodon lunulaReported here · unconfirmed
Bignose UnicornfishNaso vlamingiiReported 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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