Western Rocky Pinnacle

Best months: Jan–May

Why dive here

With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Western Rocky Pinnacle offers some of Similan Islands's richest pinnacle diving. Water ranges 29-31°C, warmest April, May, June.

Best timeJan–May

WetsuitA 3mm shorty or thin full wetsuit

Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 173+ species recorded

Water29-31°C · warmest April, May, June

CharacterPinnacle dive · max 15-30m

StandoutExceptional marine biodiversity

Western Rocky Pinnacle, down in the southern Similans, is one of those deeper sites that often gets overlooked for its flashy neighbours. We like it for its topography – a series of large granite boulders and swim-throughs, not unlike Hin Daeng, but with a different feel. It’s a good spot to keep an eye out for bigger pelagics; whale shark sightings happen here, especially earlier in the season. The currents can be a bit lively, so we’d suggest it for divers comfortable in drift conditions, able to tuck into the lee of a rock when needed. We find it’s best done early morning, before the day boats arrive.

Typical Western Rocky Pinnacle 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.

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Reviews for Western Rocky Pinnacle

Conditions

Ocean conditions, forecast and tides for Western Rocky Pinnacle

Western Rocky Pinnacle Ocean Conditions

Monthly averages for Western Rocky Pinnacle, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)