




Available languages
8 hours 30 minutes
Mobile ticket
The 100 Degrees East Marine Team's signature tour to the Angthong National Marine Park tour presents an exciting alternative for guests who prefer to avoid the crowds in safely and comfort, seeking a little more exclusivity in their choice of excursion. We guarantee a maximum of only 12 adults on our tour or 14 guests when children aged 4 - 12 years are on board. With a high ratio of crew to guests our English-speaking guides provide a very personalised experience. Our caring and knowledgeable guides accompany you as you snorkel, kayak and make your way to the famous Emerald Lagoon. Your day can be as active as you wish or spent dozing off under the shade of the trees. Everything is included in the price of the tour, no additional fees or charges. For groups larger than 4 please contact us to check our availability.
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
Minimum number of guests required. We will notify you by 4.00 PM a day prior to your tour, if we didn't reach minimum guests required to operate. You will have the option to cancel your reservation or change to the next available tour.
Bookings for groups of 5 or more travellers must be made directly, we can not guarantee that separate bookings made for the same group will be scheduled on the same boat.
Ko Samui
Start the day cruising past the northern coast of Samui en route to the Angthong National Marine Park..
Upon arrival at Koh Wao our team will select the best location for snorkelling to ensure a safe and fun experience. After a briefing the guides will join you in the water to provide assistance and lead the way as you explore. We provide personalized service that makes this suitable for all ages and abilities, from experienced snorkelers to non-swimmers. All snorkel equipment is provided, including fins which make navigating the reef much easier! Lifejackets and life rings are available, our guide can also act as your in-water taxi service!
Pickup included
Life jackets
Soda/Pop
Bottled water
Lunch
Towels
Use of Snorkelling equipment
All Fees and Taxes
Kayaking
Restroom on board
Seasonal fruit
Full insurance coverage
Transfer to and from accommodation
Select a pickup point
For a full refund, cancel at least 24 hours before the scheduled departure time.
863 reviews
Total reviews and rating from Viator & Tripadvisor
831susannek,Jun 19, 2026
- Review from Tripadvisor
Absolutely great experience with 100 Degrees from the moment of booking to the end of the trip. Professional and wonderful team, starting with Cara during the booking process and all the way to the entire team on the boat. Snorkeling was fun and lots of information on wild life given. Lunch was very good, very different from other operators that are more mass oriented. It’s worth every baht even if it’s more than other operators but it’s so much more professional. You can see the team enjoys what they are doing.
Will R,Jun 16, 2026
- Review from Tripadvisor
My husband and I booked this tour for one of our days on the island. Everything was wonderful! The team was flexible and professional and kind. The lunch was awesome and authentic! The snacks along the way and water refills with electrolytes were an added touch that we appreciated very much. We loved the beaches we went to and it was all very beautiful! The tour guides offered to take photos- all in all great time and a great trip!
Venture25763560060,Jun 15, 2026
- Review from Tripadvisor
We booked direct with 100 degrees east for a return trip and received a return booking discount. There is no other operator to consider. Cara and her team are so professional and consider the details. They have new boats (June 26) and they cater for dietary requirements with plenty of food and make sure your day is great by pointing out stuff to see, experience all with the famous thai relaxed fun attitude.
Daniel S,Jun 15, 2026
- Review from Tripadvisor
The trip with 100 Degrees was a truly beautiful and unforgettable experience. What impressed us most was the deep respect shown for nature throughout the entire journey. The national park is absolutely breathtaking and offers some of the most stunning scenery we have ever seen. Everything was perfectly organized, allowing us to fully enjoy the experience. At the same time, it serves as a powerful reminder of how fragile and precious nature really is. Even now, back home, we continue to reflect on what we saw and experienced. For us, this was genuinely a mind-changing experience that will stay with us for a very long time. Thank you to the entire team for creating such a special and meaningful day.





Ed R,Jun 15, 2026
- Review from Viator
What a fantastic experience! Excellent service, the accompanying staff were super good, very helpful and very very friendly and enthusiastic. There was plenty of time for the planned activities, where we were helped very well every time. Also the lunch was excellent. And because you are in a small group, it looks like a private tour. No discussion possible, you just have to experience this for yourself.
Ashleigh W,Jun 10, 2026
- Review from Viator
The team at 100 Degrees took the best care of us. Absolutely what you want when you’re on a holiday and don’t want to think about anything. Loved their attention to detail, reminding you to reapply sunscreen, topping up water, and the VIP treatment. Lunch was delicious, they really care for their clients. Loved that we were taken to places that weren’t so crowded, seeing the other bigger boats go by and seeing how people were treated on them made me really value my choice of tour. Absolutely worth every cent, team was incredible.
Rik M,Jun 9, 2026
- Review from Viator
Absolutely brilliant. Started with pick up from our hotel to a small introductory session. Friendliest guides ever and pretty funny to boot. Speedboat-ed(?) our way to 2 snorkelling spots. All equipment provided, unlike other tours where fins are almost always missing. Plethora of marine life, especially trigger,parrot and needle fish. Had a hike to the viewpoint which had 0 tourists at our time of arrival. Followed by kayaking (hot!!!) and lunch + relaxx on the beach. We chose to go snorkelling again at this point. Ended with another lovely (read tiring!) hike to a viewpoint over a small hill and ended back in the speedboat. By far the best day trip you can elect to go for with the best guides and timings.
Sightsee55942531974,Jun 9, 2026
- Review from Tripadvisor
VIP experience, dream excursion, 7 people on board for 14 clients, the tour is optimized to be alone throughout the excursion, nothing to complain about.
Mattie R,Jun 7, 2026
- Review from Viator
Amazing tour with great guides! They did a wonderful job showing us reef life and touring the various spots. Thoroughly enjoyed the day and they even dropped us off beachside back at our hotel!
Alan M,Jun 5, 2026
- Review from Tripadvisor
This is a great trip. It’s nice to visit the locations in National Park in a small group rather than a big crowd. The crew and the guides take excellent care of you. Lunch was delicious.
Operated by 100 Degrees East Dive Team