




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.
856 reviews
Total reviews and rating from Viator & Tripadvisor
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.





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.
M1228BEbriannas,May 31, 2026
- Review from Tripadvisor
We visited Ang Thong Marine Park on our honeymoon through this company, and it was truly a wonderful experience. We had almost canceled at the last minute because my husband was experiencing some GI upset, but the staff kindly provided him with Thai medication that helped relieve his symptoms and allowed us to enjoy the day. The crew was incredibly friendly and attentive, constantly making sure we stayed hydrated by refilling our water bottles and offering unlimited soft drinks throughout the trip. They also acted as photographers, happily taking our phones and capturing so many special memories for us. We traveled by speedboat to our first activity, snorkeling, and it was so much more than a typical tourist snorkeling excursion. The crew explained the marine life we might encounter, and we were divided into small groups of just three guests per guide. Our guide led us through the water, around the limestone island, and even through a cave, pointing out wildlife along the way. This was no ordinary snorkeling experience. We were provided with high-quality equipment and had the opportunity to see beautiful fish, coral, and even an octopus. The lunch served was also delicious and a welcome break after the morning activities. Overall, this was one of the highlights of our honeymoon. The professionalism, kindness, and attention to detail from the entire crew made the day unforgettable. When we return to Thailand, we will absolutely be booking with them again.









Greg I,May 31, 2026
- Review from Viator
The staff/guides for this tour are SO professional, and the entire day is so well organized. We felt safe and very well taken care of every single step of the way. An absolute must if you’re visiting Koh Samui.
Lawrence B,May 30, 2026
- Review from Viator
It was a day full of unforgettable experiences. The sights, the activities, the team, all was great.
hongsongm,May 24, 2026
- Review from Tripadvisor
This was easily one of the highlights of our trip. From the moment we arrived, every staff member was incredibly friendly, attentive, and genuinely passionate about what they do. Before snorkeling, they took the time to introduce the local marine life and explain the different fish species we might encounter, which made the experience much more interesting and enjoyable. During the kayaking session, the team happily helped us take photos so we could focus on enjoying the scenery without worrying about capturing the perfect shot. These little touches really made a difference. What stood out the most was how caring and hardworking the staff were throughout the entire day. During the hike, they even helped carry water bottles for guests while climbing an extremely steep staircase that felt almost vertical in some sections. It was a challenging climb, especially in the heat, and their willingness to help did not go unnoticed. The team constantly checked on everyone, made sure guests were comfortable, and were always ready to lend a hand. Their professionalism, kindness, and attention to detail made the whole experience feel effortless and enjoyable. I would highly recommend this tour to anyone visiting the area. The beautiful scenery and activities were fantastic, but it was the amazing staff who truly made this experience unforgettable.



























Operated by 100 Degrees East Dive Team