Black Coral Kingdom
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
A deep wall dive off Guam plunges into darkness where black coral thrives. Strong currents bring pelagics like sharks and tuna. The steep drop-off starts at 15 meters, revealing rare black coral forests below 30 meters. Advanced divers enjoy the dramatic topography and abundant marine life. Visibility often exceeds 30 meters. Night dives reveal bioluminescent displays. The site suits experienced divers due to depth and currents.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Princess DamselPomacentrus vaiuliReported here · unconfirmed
Tracey's DamselfishChrysiptera traceyiReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Pacific Bullethead ParrotfishChlorurus spilurusReported here · unconfirmed
Jewel DamselStegastes lacrymatusReported here · unconfirmed
Ringtail Maori WrasseOxycheilinus unifasciatusReported here · unconfirmed
Pacific Orange-spine UnicornfishNaso lituratusReported here · unconfirmed
Bluestreak Cleaner WrasseLabroides dimidiatusReported here · unconfirmed
Indo-Pacific Man-O-WarPhysalia utriculusObserved near here · iNaturalist
Galaxy CoralGalaxea fascicularisObserved near here · iNaturalist
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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