Samui Full Day Trip to Angthong Marine Park by Big boat

Updated October 2026 by the Phuket Dream Company team (TAT licensed).

Angthong National Marine Park is an archipelago of 42 islands about 30 km west of Koh Samui, with steep limestone peaks, hidden lagoons and quiet beaches. This full-day Angthong National Marine Park tour travels by big boat, which gives you a smooth ride, lunch on board and plenty of space to relax. It is a good choice for families, older travellers and anyone who prefers a slower pace to a speedboat.

Highlights

• Big boat from Nathon Pier, Koh Samui – stable and spacious, with lunch on board
• Emerald Lake (Thale Nai) on Koh Mae Ko, a saltwater lake surrounded by cliffs
• Wua Ta Lap viewpoint, with panoramic views over the islands
• Snorkelling and beach time
• Program B adds kayaking along the island coastlines and caves

What to expect on the Angthong National Marine Park tour

• Morning pickup from Chaweng, Choeng Mon, Bophut, Maenam or Lamai and transfer to Nathon Pier.
• Cruise of around 1.5 hours to the park.
• Koh Mae Ko: walk the trail (about 20 minutes) up to the viewpoint over the Emerald Lake.
• Koh Wua Ta Lap: snorkel from the shore, relax on the beach, or climb to the main viewpoint. The trail is steep, with ropes in places, and takes about 25-30 minutes up.
• Kayaking (Program B) around the islands and rock formations.
• Return to Nathon Pier in the late afternoon and transfer to your hotel.

When to go

The park is normally open daily, but it usually closes for a period in the north-east monsoon (roughly November to mid-December), depending on the weather. The calmest and clearest conditions are usually from February to September. If you are travelling in November or December, check with the team before booking.

National park fee

The tour price does not include the national park entrance fee, which is paid in cash at the pier. The fee is set by the Department of National Parks; at the time of writing it is 300 baht for foreign adults and 150 baht for children.

What to bring

• Trainers or sturdy sandals for the viewpoint climbs
• Swimwear, towel and reef-safe sunscreen
• Hat, sunglasses and a waterproof bag
• Cash for the park fee and drinks

Tips from our team

• Bring plenty of water for the Wua Ta Lap climb, and start early in the stop if you want to reach the top.
• Choose Program B if you like to be active; Program A is better for relaxed days.
• Keep valuables in a dry bag on the kayaks.

FAQ

How far is Angthong from Koh Samui?
About 30 km, roughly 1.5 hours by big boat from Nathon Pier.

Is the national park fee included?
No. It is paid in cash at the pier.

What is the difference between Program A and B?
Program A is snorkelling and sightseeing. Program B adds kayaking.

Is the big boat good for children and older guests?
Yes. It is more stable than a speedboat and has shade and seating. The viewpoint climbs are optional.

Is the park open all year?
It usually closes for several weeks in the monsoon season, around November to mid-December. The team will confirm on your date.

Can I swim in the Emerald Lake?
No, swimming in the lake is not allowed. You view it from the walkway and viewpoint.

How to book

Book online on this page. When your booking comes in, the Phuket Dream Company team checks availability with the operator, confirms your place and stays in touch with you on WhatsApp (+66 95 038 5535) about pickup times and any changes.

SIT: Full day trip
Angthong National Marine Park
by Big boat
– Operate Everyday –
*Available from 1 January 2025 – 31 October 2025*
Pickup from Koh Samui (in the area)

*All price NOT Include for National Park Fee*
(Pay at he the pier)

Pickup Time Transfer (Area 1.)