Chinese Wall - Similan Islands

Chinese Wall, off the southern tip of Koh Miang, is less a wall and more a jumble of massive granite boulders. They stack from the surface down to around 30 meters, creating a maze of swim-throughs, overhangs, and small caverns. It’s a fun site to explore, like an underwater playground. We usually find giant morays tucked into the cracks, sometimes a few different species like the yellow-margined moray as well. The topography itself is the main draw here, making for an interesting dive even on quieter days. It’s a good spot for divers who enjoy poking around nooks and crannies.

Location
Similan Islands, Thailand, Southeast Asia
Coordinates
8.598000, 97.640000
Type
wall
Maximum Depth
15-40m

Marine Protected Area: Mu Ko Similan

Best Time to Dive in Similan Islands

The warmest water temperatures in Similan Islands occur in May, averaging 30.8°C. The coolest conditions are in January at 28.6°C.

Monthly Water Temperatures

  • January: 28.6°C
  • February: 29.0°C
  • March: 29.6°C
  • April: 30.6°C
  • May: 30.8°C
  • June: 29.9°C
  • July: 29.6°C
  • August: 29.3°C
  • September: 29.0°C
  • October: 29.0°C
  • November: 29.2°C
  • December: 28.7°C

Nearby Dive Sites in Similan Islands

Nearest Dive Centres to Chinese Wall

Marine Life in Similan Islands

Home to 183 recorded species including 127 reef fish, 38 hard corals, 9 seagrass & algae, 4 sharks & rays, 2 other, 1 octopus & squid.

Notable Species

Recommended Packing List for Chinese Wall

Based on average water temperature of 29.4°C, currents 7 cm/s.

  • Shorty or Rashguard - warm 29°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories