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
Octopus Reef lies along the coast of Guam, the largest island in the Mariana Archipelago in the western Pacific. This area sits within a region shaped by fringing reefs and volcanic coastline typical of Micronesia's diving grounds.
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.
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Princess DamselPomacentrus vaiuliReported here · unconfirmed
Fivestripe WrasseThalassoma quinquevittatumReported here · unconfirmed
Pacific Bullethead ParrotfishChlorurus spilurusReported here · unconfirmed
Lined BristletoothCtenochaetus striatusReported here · unconfirmed
Pacific Orange-spine UnicornfishNaso lituratusReported here · unconfirmed
Arc-eye HawkfishParacirrhites arcatusReported here · unconfirmed
Purple Hermit CrabCoenobita brevimanusObserved near here · iNaturalist
Blue LinckiaLinckia laevigataObserved near here · iNaturalist
Small Giant ClamTridacna maximaObserved 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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