Calatagan sits on the Batangas coast facing the West Philippine Sea and holds a varied mix of site types within a compact area: artificial reef, cave, cavern, drop-off, reef, and wreck. The Pyramids of Calatagan are the defining draw, an artificial reef project that has attracted a wide range of marine life including Napoleon wrasse, whitetip and blacktip reef sharks, pygmy seahorse, hairy frogfish, and whale shark. Water temperatures stay warm throughout the year, dipping slightly in the cooler months and peaking mid-year, so a thin wetsuit suits most visitors. Sites range from shallow enough for shore entry to deeper drop-offs suited to advanced divers, and eight operators are based in the area.





Monthly water temperature across Calatagan's sites, from satellite sea-surface data corrected for depth. The band shows the site-to-site spread.
Water temperatures remain warm year-round, rising toward the low thirties in the warmer months and settling around the upper twenties in January and February. Conditions vary by site, with some locations subject to moderate currents, so checking local advice before each dive is worthwhile.
8 operators
Water temperature around Calatagan ranges from about 27°C in January to 30°C in May, based on satellite sea-temperature data for its dive sites.
With water around 27–30°C, a rash guard or 3mm shorty works in Calatagan year-round.
Fin maps 5 sites in Calatagan (3 scuba diving sites and 2 snorkelling spots).
3 more sites to explore