The Dome

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 - The Dome 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

The Dome offers something a little different from the typical Similan Islands coral show. Here, you're diving amongst big, sculptural volcanic rock formations, with the corals growing on and around them. It feels ancient, like you're exploring the bones of the island itself. We've seen plenty of branch and table corals, and even some big staghorn patches, but the real draw is the geology. Keep an eye out into the blue, because the occasional whale shark has cruised by here – it’s not common, but it happens. This site is a good pick for those who appreciate the structure of a dive as much as the fish.

Typical The Dome 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.

Today06:1718:1511h 58m daylightGolden hour 17:47

Reviews for The Dome

Conditions

Ocean conditions, forecast and tides for The Dome

The Dome Ocean Conditions

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