Mu Ko Ang Thong National Park

Park Marine national park of islands and limestone karsts

In the Gulf of Thailand, Mu Ko Ang Thong comprises limestone islands with bays and lagoons; visitors take boat tours for kayaking, snorkeling and short hikes to viewpoints.

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Mu Ko Ang Thong National Park is a protected archipelago of 42 islands in the Gulf of Thailand and is managed as a marine national park. The islands are noted for limestone karst peaks, beaches, coral reefs and sheltered bays.

The park is popular for day boat trips that combine snorkeling over reefs, kayaking around limestone cliffs, and short hikes to island viewpoints. Several islands have short trails and lookouts that give wide views across the archipelago; a few islands contain park visitor facilities and basic accommodation.

The area has been protected as a national park to conserve its marine and island environments and to regulate tourism activity and fishing within park boundaries.

The islands lie in the inner Gulf of Thailand northwest of Koh Samui and Koh Phangan and are reached by boat from those islands and from mainland piers in Surat Thani province.

  • Scale and protection: The archipelago comprises 42 islands and is designated as a marine national park, with protection for coral reefs, seagrass and island ecosystems.
  • Typical visits: Most visitors travel on organised boat trips from Koh Samui, Koh Phangan or the mainland; snorkeling, kayaking and short hikes to viewpoints are the main activities.

What to See #

  • Koh Wua Talap (park island): Koh Wua Talap hosts the park headquarters, visitor facilities and some accommodation, and serves as the main drop-off and embarkation point for day trips around the archipelago.
  • Koh Mae Ko: Koh Mae Ko is noted for an inland lagoon and a short hike to a viewpoint that looks across limestone islands and steep karst cliffs; it is a frequent stop on snorkeling and boat tours.
Mu Ko Ang Thong National Park
9.6228, 99.6750

How to Get to Mu Ko Ang Thong National Park #

Most visitors reach the park via boat from Koh Samui, Koh Phangan or from the mainland at Surat Thani. Several operators run day-tour services and charter boats; ferries and speedboats take roughly 30-90 minutes depending on the departure point and sea conditions.

Tips for Visiting Mu Ko Ang Thong National Park #

  • Book a day-boat from Koh Samui or Koh Phangan that includes a guided route and lunch - most day-trips depart early morning.
  • Bring a waterproof camera - the limestone karsts and hidden lagoons look spectacular from the water and when the light is right.
  • Snorkel tours visit the marine park's bays; go with a provider that uses mooring buoys to avoid damaging coral.

Best Time to Visit Mu Ko Ang Thong National Park #

The dry season (November-April) is by far the best time for sea conditions, snorkeling and island-hopping activities.

Dry season
November-April · Warm tropical weather (25-32°C)
Calmer seas, better snorkeling and clear skies for island hopping.
Monsoon season
May-October · Hot and wet, with stronger seas
Rougher conditions and limited boat services; fewer visitors but many operators close.

Weather & Climate near Mu Ko Ang Thong National Park #

Climate
Air Quality: AQI 54 Moderate
Temperature & Rainfall
Temperature Range
36°
Warmest Month
22°
Coldest Month
Monthly Conditions

January

Weather

1.8
UV Index
Very High
11.5h daylight

February

Weather

2.2
UV Index
Extreme
11.7h daylight

March

Weather

2.4
UV Index
Extreme
12.0h daylight

April

Weather

2.4
UV Index
Extreme
12.2h daylight

May

Weather

2.2
UV Index
Extreme
12.4h daylight

June

Weather

2.1
UV Index
Extreme
12.5h daylight

July

Weather

2.1
UV Index
Extreme
12.5h daylight

August

Weather

2.2
UV Index
Extreme
12.3h daylight

September

Weather

2.1
UV Index
Extreme
12.1h daylight

October

Weather

1.8
UV Index
Very High
11.8h daylight

November

Weather

1.6
UV Index
Very High
11.6h daylight

December

Weather

1.5
UV Index
Very High
11.5h daylight

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