Hard Rock
Protected Area
Cahayagan Fish Sanctuary
Why dive here
With 82+ marine species recorded in the area - including manta rays, mobula rays (devil rays), whale sharks and pufferfish - Hard Rock offers some of Siargao's richest diving. Water ranges 27-30°C, warmest June, August, September.
Hard Rock in Siargao offers a straightforward dive along a rocky reef. We've found the rock formations themselves are the main draw here, creating interesting crevices and overhangs to explore. Visibility can be decent, usually 15-20 meters. It’s a good choice for newer divers looking for an easy, shallow dive without strong currents.
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Conditions
Ocean conditions, forecast and tides for Hard Rock
Hard Rock Ocean Conditions
Monthly averages for Hard Rock, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.91, 125.03) (20km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.2–31.2°C
Current Speed
1 cm/s
Direction: S (180°)
Chlorophyll-a
0.333 mg/m³
Moderate productivity
Salinity
32.39 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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