Western Shoals
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
Western Shoals lies off the coast of Guam in the Mariana Archipelago, a shallow reef area within Apra Harbor on the island's western side. This part of the harbor is sheltered by the surrounding reef and breakwater, making it a commonly used entry point for boat dives in the area. The reef here is built on plate and pillar coral, and divers have reported dusky surgeonfish, lined bristletooth, Pacific bullethead parrotfish, Pacific orange-spine unicornfish, and yellowbar parrotfish moving over it, along with princess, staghorn, and Tracey's damselfish holding around the coral heads.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Pacific Bullethead ParrotfishChlorurus spilurusReported here · unconfirmed
Plate & Pillar CoralPorites rusReported here · unconfirmed
Princess DamselPomacentrus vaiuliReported here · unconfirmed
Dusky SurgeonfishAcanthurus nigrofuscusReported here · unconfirmed
Lined BristletoothCtenochaetus striatusReported here · unconfirmed
Tracey's DamselfishChrysiptera traceyiReported here · unconfirmed
Staghorn DamselAmblyglyphidodon curacaoReported here · unconfirmed
Yellowbar ParrotfishScarus schlegeliReported here · unconfirmed
Pacific Orange-spine UnicornfishNaso lituratusReported here · unconfirmed
Galaxy CoralGalaxea fascicularisObserved near here · iNaturalist
Blue LinckiaLinckia laevigataObserved 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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