Older regional article mentioning the Koh Nen / Ko Phra channel and Royal Thai Navy context.
Controlled shallow reef for conservation and snorkel dives.
Controlled shallow reef for conservation and snorkel dives.
Access is best arranged through the navy, authorized operators or local organizers.
Shallow coral-reef island area near Ko Phra, inside a controlled military and conservation zone on the Sattahip coast. It suits supervised snorkel or conservation-diving visits more than casual free access, with simple reef structure, schools of fish and an easy underwater profile. Plan it around permission, operator coordination and day-of access rather than open-entry logistics.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Depth Note
Described as a shallow coral reef area.
Best Season
Year-round
Typical Conditions
Shallow reef water with some turbidity and a managed-access environment; plan for straightforward navigation, but not for open public access.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Do not assume walk-in access; confirm the day's permission and stay within the permitted reef area.
Access Restrictions
Use only with the current permission and supervised access arrangement; the area is next to military operations.
Legal Notes
Treat the site as a controlled area and follow local military, conservation and boating rules.
Community notes to help plan your visit.
Scuba Diving
Used for conservation diving by the Royal Thai Navy.
Freediving
Only for very shallow, controlled practice if access is granted; the site is not presented as a freedive-first location.
Snorkeling
Shallow reef snorkeling is the main recreational fit, but access is controlled and should be arranged first.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Older regional article mentioning the Koh Nen / Ko Phra channel and Royal Thai Navy context.
Official coral survey for nearby Koh Phra Noi / Koh Phra with degraded coral and turbid water.
Community post describing snorkeling around Koh Nen via kayak/motor-boat tow.
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