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Mun Islands overview with current, visibility, and best-season guidance.
Dive Spot Guide•
Koh Man Nai Jetty
Shallow jetty dive beside a turtle sanctuary with strong macro life.
Local operator required
One-day trips and local arrangements are the normal way to reach the site and visit the sanctuary.
Koh Man Nai Jetty is a very shallow Thailand dive site under the pier beside a sea turtle conservation center, known for sandy bottom, hard coral groups, and macro marine life.
About Koh Man Nai Jetty
Shallow jetty dive under Koh Man Nai in Thailand's Rayong maritime zone, beside a sea turtle conservation center and nursery. The site is a calm-day macro and snorkel favorite, with sandy bottom, hard coral groups, and easy searches for seahorses, pipefish, nudibranchs, octopus, crabs, and snake eels around the pier and nearby reef edge.
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Research Estimate At Koh Man Nai Jetty
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 10m
AccessSimple entry
CoralMixed health
Aquatic LifeExceptional variety
FacilitiesBasic facilities
Crowd / PopularityModerate
CurrentLight current
SurgeFlat calm
Where Is Koh Man Nai Jetty?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Koh Man Nai Jetty Planning Details
Depth range, seasonality, and planning context.
Reported Depth
2m - 8m
Depth Note
Shallow 2 m to 8 m sandy-to-hard-coral area beneath the jetty, with nearby reef and pier pillars for macro life.
Best Season
January to April, with November-December still workable; May-October is less favorable because rainfall can make the water murkier.
Typical Conditions
Very shallow water, mild to moderate current, and the best clarity in the dry season. Macro life is strongest around the pier pillars and nearby reef.
Safety & Access At Koh Man Nai Jetty
Site conditions, restrictions, and access requirements.
Site Conditions
Boat trafficLow visibilityRestricted accessSharp coral
Safety Notes
Watch the jetty structure, stay clear of harbor traffic, and mind the hard-coral sections when moving through the shallows.
Access Restrictions
Jetty-side access near a conservation center; use local day-trip arrangements and follow sanctuary guidance.
Legal Notes
Respect sea turtle sanctuary rules and local harbor guidance; one-day visitor access is the normal pattern.
Local Intel For Koh Man Nai Jetty
Community notes to help plan your visit.
Scuba Diving
A very shallow scuba site with sandy bottom, hard coral groups, and plenty of macro subjects under the jetty.
Freediving
The shallow profile makes breath-hold exploration possible, but controlled snorkeling is usually the better fit than aggressive freediving.
Snorkeling
Good snorkel site in calm water thanks to the 2-8 m profile and macro life around the jetty and reef edge.
Wildlife at Koh Man Nai Jetty
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Koh Man Nai Jetty
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Koh Man Nai Jetty
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility10m
Activity
No dive activity logged yet.
