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

Frequently Asked Questions

What is the typical depth range for diving at the Chinese Wall dive site?
The typical depth range for diving at the Chinese Wall dive site is between 15 and 40 meters. This extensive depth allows divers to explore various sections of the unique granite boulder formations.
What kind of marine life and underwater topography can divers expect to see at the Chinese Wall?
Divers at Chinese Wall can expect to encounter a fascinating underwater topography of granite boulders forming swim-throughs, valleys, caverns, and caves. These crevices are home to diverse marine life, including large giant moray eels, finbriated moray, and yellow margined moray, making it a true diver's playground. For more information on marine species, visit our wildlife database.
What is the difficulty level for diving the Chinese Wall, and what certifications are recommended?
The Chinese Wall dive site is classified as an intermediate difficulty level. While specific certifications are not detailed in the provided data, an intermediate rating typically suggests that divers should have experience beyond entry-level, such as an Advanced Open Water certification, to comfortably navigate the depths and conditions.
When is the best time of year to dive the Chinese Wall for optimal conditions and marine encounters?
The provided data does not specify the best time of year to dive the Chinese Wall for optimal conditions or marine encounters. For general information on seasonal diving conditions in the region, you might consult our when to dive guide.
Are there any specific diving certifications or experience levels required to dive the Chinese Wall?
The Chinese Wall dive site is rated as intermediate difficulty. While no specific certifications are explicitly stated, divers should possess an appropriate level of experience and training, such as an Advanced Open Water certification, to safely enjoy the site's features and depths.
What are the typical current conditions and visibility like at the Chinese Wall dive site?
The provided data does not include information regarding the typical current conditions or visibility at the Chinese Wall dive site. Divers planning a trip should consult local dive operators for the most current conditions.