Merlin House Reef
Protected Area
Phuket Environmental Protected Area
Why dive here
With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Merlin House Reef offers some of Similan Islands's richest reef diving. Water ranges 29-31°C, warmest April, May, June.
Merlin House Reef, right in the heart of the Similans, is a perfect spot for getting comfortable in the water. We like it for easy buoyancy checks or for divers just starting out, as the maximum depth is a gentle 11 meters. You’ll drift over a sandy bottom dotted with coral bommies, home to plenty of smaller reef fish. Look closely for anemonefish popping in and out of their homes and small schools of snapper hovering in the calmer patches. It’s a very relaxed dive, often tucked away from the stronger currents that can hit other Similan sites.
Typical Merlin House Reef 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 Merlin House Reef
Dive shops near Merlin House Reef
Sea Bees Diving Merlin Beach
Love Diving Phuket
Sea Fun Divers
Santana Diving & Canoeing
Phuket Dive Tours - Patong
Super Divers Phuket
Reviews for Merlin House Reef
Conditions
Ocean conditions, forecast and tides for Merlin House Reef
Merlin House Reef Ocean Conditions
Monthly averages for Merlin House Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)
October Averages
Sea Temperature
30°C
85°F · Range: 28.7–30.4°C
Current Speed
5.1 cm/s
Direction: S (191.3°)
Salinity
29.75 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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