Conditions
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
Gun Beach is a shore diving site on the northern coast of Guam near Tumon Bay, in the Mariana Islands. It sits within reach of Guam's tourist district and is one of several access points along that stretch of coastline into the waters of the Philippine Sea.
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.
Princess DamselPomacentrus vaiuliReported here · unconfirmed
Pacific Bullethead ParrotfishChlorurus spilurusReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Lined BristletoothCtenochaetus striatusReported here · unconfirmed
Jewel DamselStegastes lacrymatusReported here · unconfirmed
Fivestripe WrasseThalassoma quinquevittatumReported here · unconfirmed
Tracey's DamselfishChrysiptera traceyiReported here · unconfirmed
Orangestripe TriggerfishBalistapus undulatusReported here · unconfirmed
Pacific Orange-spine UnicornfishNaso lituratusReported here · unconfirmed
Indo-Pacific Man-O-WarPhysalia utriculusObserved near here · iNaturalist
Purple Hermit CrabCoenobita brevimanusObserved 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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