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Operator dive-site page with depth, current, visibility, and marine life.
Koh Ma
Sandbar-linked reef at Koh Ma.
Scuba DivingSnorkelingShoreBeginner3m - 25m
Reef
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.
Safety & Access
Site Conditions
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.
Where Is Koh Ma?
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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.
Research Estimate At Koh Ma
Conservative baseline from public research. No community dives logged yet.
Avg. Visibility10m
Access4/5 · Simple entry
Coral4/5 · Healthy coral
Aquatic Life5/5 · Exceptional variety
Facilities4/5 · Good facilities
Crowd / PopularityFew visitors
CurrentLight current
SurgeLight surge
