Croc Caverns
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
Croc Caverns is a cave and cavern system off Rarotonga at depths of 8 to 12 metres, reserved for experienced divers with 50 or more dives. It is a bigger system than the other cave nearby.
The entrance is a well-hidden fissure in the reef, followed by a chain of large caverns. Lionfish, moray eels and Spanish Dancers live inside, and a resident white tip is sometimes found sleeping in a dark corner of the final cavern.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Moray eelMoray eelReported here · unconfirmed
Reef sharkReef sharkReported here · unconfirmed
Blue-black UrchinEchinothrix diademaReported here · unconfirmed
Indo-Pacific Rock-boring UrchinEchinometra mathaeiReported here · unconfirmed
Greenfish Sea CucumberStichopus chloronotusReported here · unconfirmed
Black Sea CucumberHolothuria leucospilotaReported here · unconfirmed
Surf RedfishActinopyga mauritianaReported here · unconfirmed
Lollyfish Sea CucumberHolothuria atraReported here · unconfirmed
Blue LinckiaLinckia laevigataReported here · unconfirmed
LionfishLionfishReported 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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