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
Arthur's Rock lies off Anilao in Mabini, Batangas, part of the stretch of coastline on the Luzon side of the Balayan Bay known for its many small boat-accessed dive sites. Anilao sits within the Verde Island Passage, a strait recognized for its marine biodiversity, and dive operations here typically run out of resorts along the Mabini coast.
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.
Anna's ChromodorisChromodoris annaeReported here · unconfirmed
Willan's ChromodorisChromodoris willaniReported here · unconfirmed
Chamberlain's NembrothaNembrotha chamberlainiReported here · unconfirmed
Loch's ChromodorisChromodoris lochiReported here · unconfirmed
Geometric GoniobranchusGoniobranchus geometricusReported here · unconfirmed
Tryon's HypselodorisHypselodoris tryoniReported here · unconfirmed
Lined NembrothaNembrotha lineolataReported here · unconfirmed
Clark's AnemonefishAmphiprion clarkiiReported here · unconfirmed
Peacock Mantis ShrimpOdontodactylus scyllarusReported here · unconfirmed
Redtooth TriggerfishOdonus nigerReported 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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