Whaleback Rock

Best months: Jan–May

Protected Area

Mu Ko Similan

Why dive here

With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Whaleback Rock 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 20m

StandoutExceptional marine biodiversity

Whaleback Rock in the Similans offers a relaxed dive, perfect for beginners or a chilled-out second dive. The site is a collection of large granite boulders, some breaking the surface, creating interesting swim-throughs and sheltered nooks below. We often spot pipefish and small reef sharks tucked away, and the soft corals here are surprisingly colourful for a rocky site. It’s a great spot to practice buoyancy and enjoy a slower pace.

Typical Whaleback Rock Dive Profile

Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

Safety Notes

Depth of 20m - Advanced Open Water certification recommended.

Always perform a 3-minute safety stop at 5m before surfacing.

Today06:1818:1611h 58m daylightGolden hour 17:48

Reviews for Whaleback Rock

Conditions

Ocean conditions, forecast and tides for Whaleback Rock

Whaleback Rock Ocean Conditions

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