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Park open/closed season
Dive Spot Guide•
Nam Chai/ Mooring Bay
Nam Chai / Mooring Bay is a boat check-dive bay.
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Seasonal Similan bay with granite boulders, a sloping reef, and easy navigation that suits beginner, freedive, and snorkel plans.
About Nam Chai/ Mooring Bay
Nam Chai / Mooring Bay is a boat-access check-dive bay in the Similan Islands with a sloping reef, granite boulders, and a sandy bottom that make it easy to read underwater. The site is relaxed and well suited to beginner-friendly exploration, with turtles, reef fish, and small coral-garden details showing best when the sea is calm and the park is open.
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Research Estimate At Nam Chai/ Mooring Bay
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 25m
AccessChallenging entry effort
CoralHealthy coral
Aquatic LifeGreat variety
FacilitiesGood facilities
CurrentNo current
SurgeFlat calm
Where Is Nam Chai/ Mooring Bay?
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Community sourced coordinates.
Nam Chai/ Mooring Bay Planning Details
Depth range, seasonality, and planning context.
Reported Depth
20m - 25m
Depth Note
The sloping reef transitions to a sandy bottom around 20-25m, with granite boulders and anemone gardens along the way.
Best Season
November to May
Typical Conditions
Calm seas and excellent visibility are typical in the open season, with December to April often the clearest stretch.
Safety & Access At Nam Chai/ Mooring Bay
Hazards, restrictions, and access requirements.
Key Hazards
Restricted access
Safety Notes
Park access is seasonal, so plan the trip inside the open window and keep buoyancy tidy over the sandy bottom.
Access Restrictions
Boat access only within the Similan Islands National Park during the open season.
Legal Notes
The Similan Islands close during the monsoon season and reopen for the diving season.
Local Intel For Nam Chai/ Mooring Bay
Community notes to help plan your visit.
Scuba Diving
A classic Similan check-dive bay with a sloping reef, sandy bottom, granite boulders, and plenty to look at.
Freediving
The shallow reef and calm season make it workable for freedive looks.
Snorkeling
The shallow reef and sand can work for snorkel when the sea is calm.
Wildlife at Nam Chai/ Mooring Bay
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Nam Chai/ Mooring Bay
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Nam Chai/ Mooring Bay
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility25m
Activity
No dive activity logged yet.
