Rock Island
Protected Area
Siargao Islands Protected Landscapes and Seascapes (SIPLAS)
Why dive here
With 82+ marine species recorded in the area - including manta rays, mobula rays (devil rays), whale sharks and pufferfish - Rock Island offers some of Siargao's richest diving. Water ranges 27-30°C, warmest June, August, September.
Rock Island is a straightforward dive, good for beginners looking to get comfortable. The site drops to 18 meters, an easy depth, mainly featuring rocky formations. You'll likely spot smaller reef fish darting around the rocks. It’s a solid choice for a first few dives in the area.
Typical Rock Island Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to Rock Island
Dive shops near Rock Island
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Conditions
Ocean conditions, forecast and tides for Rock Island
Rock Island Ocean Conditions
Monthly averages for Rock Island, 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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