Available languages
7 hours
Mobile ticket
Experience the towering limestone cliffs, lush jungle, hidden coves, and the stunning Emerald Lagoon of Ang Thong National Marine Park. Cruise through a paradise of 42 islands scattered across the Gulf of Thailand on a small-group tour limited to just 16 guests, ensuring comfort, space, and a more personal experience.
Public transportation options are available nearby
Infants are required to sit on an adult’s lap
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
What to bring: Sunscreen, Sun glasses, Towel and Cash (Shops on the islands accept only cash)
Travelers arriving by cruise ship are not accepted
For a full refund, cancel at least 24 hours before the scheduled departure time.
After a morning pick-up from Koh Samui, head straight to the pier to begin your maritime excursion among the 42 islands of Ang Thong. After being fitted for masks and snorkels, you’ll glide over to the island of Koh Wao to snorkel in the crystal-clear waters among magnificently diverse coral reefs. Explore the sheltered bay, keeping your eyes peeled for tropical fish. Continuing through the national park, you’ll arrive at Koh Mae Ko for kayaking and after that. Disembarking and heading for the panoramic view above the Emerald Lagoon, a gem of Ang Thong Park. Fed by the sea through a series of caves, the lagoon is completely untouched, as it is illegal to swim within it. Afterward, head to Koh Phaluai for a seaside Thai lunch, and for some time to unwind and relax on the beach before heading back to Koh Samui
Speedboat tour (max 16 guests)
Round-trip hotel transfers
Kayaking activity & Beach mat
English-speaking guide
Snorkeling equipment (mask, snorkel, fins)
Thai buffet lunch & fresh fruit & Drinking water & soft drinks
Travel Insurance
Adult 300 / Children 150 THB (Pay at the pier)
TIP
Select a pickup point
Pickup included
322 reviews
Total reviews and rating from Viator & Tripadvisor
temiladea2017,Apr 18, 2026
- Review from Tripadvisor
Such a great boat trip. Well organised with a lovely and enthusiastic team. Nice mix of activities and only wish we had longer to chill out on the beach at the end. Shout out to Winner who was great. Recommended
mcctrip,Apr 18, 2026
- Review from Tripadvisor
If you do one tour whilst in Ko Samui, pick this one. We’ve just had the most amazing day out with them. They brought us to Ang Thong National Marine Park and we visited so many beautiful and magical places. We were travelling as a grown up family ( we have two boys in their early 20’s). The staff (and I have to especially mention “Win”) were all brilliant. They looked after us so well. We kayaked, swam, snorkelled, dived off the boat, had an amazing meal on a beautiful island restaurant. Hiked up to a viewing point (optionally) which had gorgeous views over a secret lagoon. These guys are great they bring you to all the places before the big crowds arrived so on most stops it was mostly just us for most of the time. “Win” took loads of pictures for everyone who was on the tour so we all took away complete family or group pictures so no one missed being in them it by having to take the photo themselves. We are so glad we went with them. I’d highly recommend them. Enjoy your day out with them, I’m jealous and would love to go again!!








toddgW4316NK,Apr 15, 2026
- Review from Tripadvisor
Did this tour on 7 April. Guide was unfriendly and unengaged. The hike to lagoon OK. The kayaking was pathetic. It lasted less than 10 minutes and was only about 200m. Clearly only there to check the box that you got to kayak. Snorkeling area was very crowded. Boat we took doesn't really allow for viewing. Two guides took the best seats. I would not recommend Happy Samui.

Gemma M,Apr 7, 2026
- Review from Viator
Really comfortable experience, small group meant there was plenty of space to move around the boat. Beautiful scenery & good variety of activities through the day.
benjaminhF1747LO,Mar 30, 2026
- Review from Tripadvisor
Such a great day. Mr Yai, the star of the show, and his excellent crew were efficient and professional. We felt safe at all times! The itinerary was just lovely with just the right amount of variety. Basically everything was supplied. Lunch was yummy. Hotel pickup made it all super easy. Don’t miss this tour!
ilenereinfeld,Mar 30, 2026
- Review from Tripadvisor
Yai and his team were wonderful hosts and guides. We had a great time! Thank you for sharing your beautiful islands
Aaron W,Mar 28, 2026
- Review from Tripadvisor
The staff and service were impeccable. Yai our guide was super funny and friendly. Highly recommended. Great lunch also.







Kevin W,Mar 25, 2026
- Review from Viator
The 4 guys on the boat gave terrific service. There were fresh fruit platters, cookies, cakes, and plenty of sodas and waters on the boat. The snorkeling was fantastic. Kayaking through sea caves was a lot of fun. We stopped for a great hot lunch on a small island with fish, chicken and veggie entrees. The crew always aimed to please.
Daydream20414819931,Mar 14, 2026
- Review from Tripadvisor
Great team. Very friendly. Very good captain and Yai was a good guide 👍👍 Highly recommended
Sightsee24075086994,Mar 14, 2026
- Review from Tripadvisor
Tour with Yai and Crew was Perfect. Everytime again
Operated by Happy Samui