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Day Tour Angthong Marine Park
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Ang Thong Marine Park closure
Ang Thong Marine Park Closure: Closed from 1 November to 15 December
Last updated: September 2026
If you are planning to visit Ang Thong National Marine Park from Koh Samui or Koh Phangan in November or early December, there is one important date you need to know:
Ang Thong Marine Park is closed from 1 November until 15 December each year.
During this annual seasonal closure, visitors cannot enter the Marine Park for normal sightseeing tours, speedboat trips, private charters, kayaking excursions, camping or overnight stays.
The park normally reopens from 16 December, subject to National Park authorities confirming that weather and sea conditions are suitable.
Quick Answer
Is Ang Thong Marine Park open in November?
No. Ang Thong Marine Park is closed throughout November.
When does Ang Thong Marine Park close?
The annual closure begins on 1 November.
When does Ang Thong Marine Park reopen?
The scheduled reopening is 16 December, following the closure through 15 December.
Can I book an Ang Thong tour during the closure?
No legitimate operator can take tourists into the National Marine Park while it is officially closed.
Can private boats enter during the closure?
No. The seasonal closure applies to the Marine Park itself, not only to shared tours.
Planning Your Ang Thong Tour
If you are travelling:
Before 1 November:
Book your Ang Thong tour during October, preferably with some flexibility in your itinerary.
Between 1 November and 15 December:
Choose an alternative activity because Ang Thong is closed.
From 16 December onward:
Ang Thong normally reopens, and we recommend booking early during the Christmas and New Year season.
For current tour options, availability and bookings, visit:
Ang Thong Marine Park Closure FAQ
Is Ang Thong Marine Park closed in November?
Yes. The annual closure runs from 1 November through 15 December.
Is Ang Thong Marine Park open in early December?
No. It remains closed until the end of 15 December.
When does Ang Thong Marine Park reopen?
Normally from 16 December.
Why is Ang Thong closed?
The annual closure coincides with the Gulf monsoon period and supports safety, park management and environmental recovery.
Can a private speedboat still enter?
No. Private charters are subject to the same National Park closure.
Can I stay overnight during November?
No. Normal tourist camping and accommodation within the Marine Park are unavailable during the closure.
Can I visit Emerald Lagoon in November?
No. Emerald Lagoon is located inside Ang Thong National Marine Park.
Can I kayak in Ang Thong during November?
No normal tourist kayaking programmes operate inside the closed Marine Park.
Are Koh Samui and Koh Phangan also closed?
No.
The closure applies to Ang Thong National Marine Park, not to Koh Samui or Koh Phangan.
Hotels, restaurants and other tourism businesses on those islands continue operating independently of the park closure.
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