Ang Thong National Marine Park by Slow Boat

Hotel pick-up & drop-off

Breakfast & lunch onboard

All safety equipment provided

Discover some of the gulf’s most beautiful islands

Looking for things to do in Koh Samui? This big boat tour to Ang Thong National Marine Park should be at the top of your list! This 100-square kilometre marine preservation area is one of the most beautiful and pristine places left in Thailand. As one of the best day trips from Koh Samui, this natural wonder is just an hour and a half away. Don’t worry about having time to sightsee, though—you’ll have the entire day to enjoy. As we cruise along throughout the day, we’ll be sure to show you the main sights and enjoy the various stops, allowing you to take beautiful photos and make memories to last a lifetime.


See the natural wonder of the Emerald Lake, a miniature inland sea nestled within Mae Koh island

Snorkel, swim, sunbathe and relax to your heart's content on some of the archipelago’s 42 islands

Cruise to the park on the open sea and watch the world go by

Ride a traditional Long Tail boat and kayak to explore spectacular limestone cliffs and bays

Visit the Ang Thong Marine Park information center to learn about the formation of this unique park

Take short but challenging hikes to two breathtaking viewpoints of the entire park

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With kayak

  • Adult: 1650 THB
  • Child: 900 THB
  • Children 4 and under: free

Without kayak

  • Adult: 1100 THB
  • Child: 600 THB
  • Children 4 and under: free

Pick-up time


Please note that pick-up times will depend on your hotel’s location. After booking, we will notify you of your exact pick-up time when you receive your confirmation email.

Meeting point

Your hotel in Koh Samui


Every day, depending on the weather

To guarantee your place, please book no later than 14 hours before the scheduled departure.


Approximately 9 hour

Group size

30-100 guests

  • Hotel pick-up & drop-off
  • Breakfast & lunch
  • English speaking tour guide
  • Traditional Thai long-tail boat trip
  • Kayak & snorkeling equipment
  • Life jacket & safety equipment
  • Dry bag for personal items
  • Travel & accident insurance

Not included
  • Admission fee to national marine park
  • Guide gratuities

What to bring
  • Cash or card for entrance fee to park (300 THB each adult, 150 THB each child)
  • Sunglasses
  • Swimwear
  • Towel
  • Waterproof equipment for devices
  • Sandals
  • Sunblock

Cancellation policy

Free cancellation up to 24 hours in advance.

Embark on this unforgettable boat journey to the most beautiful and secret spots of Ang Thong National Marine Park. No need to worry about making your own way—we’ll take care of everything! After collecting you at your hotel, we will escort you to the pier from where we will sail to the park. There, you will have the chance to explore the numerous hidden gems on your own kayak. The beauty of this tour is that there’s something for everybody. It’s educational and active, adventurous and relaxing.

Some of the sights and activities on the tour:

  • Bau Boke Cave with beautiful lotus-shaped stalactites and stalagmites
  • Unique fauna and flora protected in the park
  • Learn about the park’s formation at the park center
  • Trek inside the park
  • Capture the famous iconic viewpoint looking out onto the marine park
  • Swim, snorkel and kayak in the dreamlike turquoise waters of the Gulf

When you arrive at the park, the boat will drop anchor near Koh Mae. From there, you can either kayak to the island or sail on a traditional Thai long-tail boat. This unique island attracts all visitors as it’s the home of the amazing Emerald Inland Sea, which is a must see for every visitor.

For lunch, a delicious Thai buffet and fresh seasonal fruit await you onboard our vessel. Then, we’ll change course and head to Wu Ta Lap Island where you can explore the sea depths by snorkel or the top of the islands by foot to enjoy the iconic views. The beaches here also have perfect soft white sand where you can have a lovely sunbathe and play in the sea.

The hike to the viewpoint is around 500 metres with a few stops along the way. Once at the top, you will be justly rewarded with a timeless view that extends across the park, highlighting the islands of the park in your vista. This little hike will be the pinnacle of your day (pun intended)!

For the keen explorers who have done enough relaxing on the boat, Koh Wu Tua Lap also has caves to discover about a 1-kilometre trek away from the centre.

Around 3:00pm, we’ll set sail back to Koh Samui. A couple of hours of onboard relaxation and reflection later, and you will be back on Koh Samui and taken back to your hotel in an air-conditioned minivan. Travel in style and end your day relaxed!


7:30: Transfer from your hotel in Koh Samui to the pier. Exact time will be sent by email.
8:30: Your boat leaves for Ang Thong Marine Park by tour boat & light breakfast onboard.
10:00: Arrive at Ang Thong Marine Park. Choose to start kayaking along coastline to reach Mae Koh Island or take the Long Tail Boat.
10.30: You will then be able to climb the Island’s interior, to check out the picturesque views of the Emerald Lake.
12:00: You will be treated to a filling Thai buffet lunch, fresh seasonal fruit and soft drinks.
13:00: We set sail to Wua Ta Lap island to enjoy snorkelling and climbing to the most incredible view point of the Gulf of Thailand. Alternatively, you can choose to relax on the beach.
15:00: Depart from Ang Thong Island and relax on the boat with refreshments.
16:30: Return to Koh Samui and transfers back to hotel in a comfortable minivan.

Please note: program is subject to change due to sea and weather conditions.

  • The Ang Thong Marine Park BIg Boat is fully equipped with comfortable seating, toilets and showers.
  • The undeveloped and protected islands serve as wildlife sanctuaries, so keep your camera phone handy for photos. Stay alert! If you’re lucky, you might see a dolphin, whale, turtle, iguana, boar, monkey or python in the wild at any moment.

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