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A shallow sandbar-linked island with easy access, colorful coral, and a reef that works from snorkeling through beginner scuba.
About Koh Ma
Koh Ma is a sandbar-linked reef island off Mae Haad Beach on the northwest side of Koh Phangan. The shallow side is friendly for snorkelers and new divers, while the coral slope and outer rock structure bring more fish, larger groupers, and stronger marine life for experienced teams when the tide and swell are right. It is one of the island's best places for a relaxed shore entry, a quick boat hop, or a mixed snorkel-and-dive day.
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Research Estimate At Koh Ma
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 10m
AccessSimple entry
CoralHealthy coral
Aquatic LifeExceptional variety
FacilitiesGood facilities
Crowd / PopularityFew visitors
CurrentLight current
SurgeLight surge
Where Is Koh Ma?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Koh Ma Planning Details
Depth range, seasonality, and planning context.
Reported Depth
3m - 25m
Depth Note
The shallow sandbar reef begins a few metres down and the main recreational slope reaches roughly 20-25 metres.
Best Season
Year-round, with the dry season usually the most comfortable and the clearest water more likely.
Typical Conditions
Warm tropical water, a gentle reef slope, and generally mild current with occasional surge on the exposed edge.
Safety & Access At Koh Ma
Hazards, restrictions, and access requirements.
Key Hazards
Low visibilitySurge
Access Restrictions
Plan around the tide if you want the sandbar crossing, and use the marine-park access pattern rather than anchoring on the reef.
Legal Notes
Koh Ma is a protected marine-park reef linked to Mae Haad; follow local mooring and conservation rules and avoid anchor damage or coral contact.
Local Intel For Koh Ma
Community notes to help plan your visit.
Scuba Diving
A shore pair can walk the sandbar at low tide or use a short boat hop. The reef slopes gently from shallow coral into deeper structure, so it works from try dives through advanced reef dives when conditions are right.
Freediving
Freedivers should stay on the shallow slope and time the tide carefully; the outer reef is more exposed.
Snorkeling
Koh Ma is one of Koh Phangan's best snorkeling spots, especially over the shallow reef near Mae Haad.
Wildlife at Koh Ma
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Koh Ma
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Koh Ma
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility10m
Activity
No dive activity logged yet.
