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.
For a full refund, cancel at least 24 hours before the scheduled departure time.
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!
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
Pickup included
750 reviews
Total reviews and rating from Viator & Tripadvisor
Nakajx,,Feb 7, 2026
- Review from Tripadvisor
Amazing tour! Great island-hopping, fun activities, and friendly staff. Everything was well organized and unforgettable.
Pierre D,,Feb 7, 2026
- Review from Tripadvisor
I recommend this trip. saw many fishes while snorkeling. The scenery is magnificent. saw monkeys on the last island . Very Well organized. Staff is very good/nice It s fast and convenient





William R,,Feb 6, 2026
- Review from Viator
This exclusion promised a small group VIP experience and it exceeded our expectation's. In total there was 14 people on the trip; other exclusions on a similar sized boat would have at least double this. This meant we had space on the boat and the team had plenty of time to interact with us all: there was 1 member of staff for every 4 of us. The speedboat was immaculate and allowed us to set off earlier, and head back later, whilst seeing the same number of locations. There was plenty of soft drinks to go around throughout the day and our water bottles never seemed to empty! The food at lunch time was amazing and there was something for everyone. Jason is obviously incredibly passionate about all things marine related and it was a real pleasure to be guided around the coral by him. Tom is a legend, good luck with leading your own tours in the future. Thanks to all of the team for a great day. W&L
Alborz K,,Feb 4, 2026
- Review from Tripadvisor
Had an amazing time with the 100 degrees east team. Compared to the other tours they are so well done and have so much attention to detail. I didn’t really clock it until halfway through that we had literally seen no crowds during our kayak/snorkel, it was basically just our group. This small group tour (with 12 people) is so much better than having 30-60 person tours, crowded longboats, etc. The food was delicious and the staff really went the extra mile in taking care of people. Everyone really cares about what they do and it shows. It’s a little pricier but well worth it knowing it’ll be a good day.

Getaway56670446326,,Feb 3, 2026
- Review from Tripadvisor
We choose this company as they offered a boat trip with a maximum of 12 passengers We were not disappointed in our choice They picked us up from hotel, provided safety talk and overview of day, fitted flippers and snorkelling gear including prescription masks The team were so knowledgable and friendly. I hadn’t snorkelled before and they provided additional support so I was able to enjoy this safely. I absolutely loved it and felt very safe. After snorkelling we went to beach and did karacking where they helpfully took photos for us We then had lunch on beach which was delicious - catered very well for vegetarians. Following this we went to another island where we could climb up a cliff to see the amazing views I honestly would recommend this company - they were brilliant from start to finish










Maggie s,,Feb 2, 2026
- Review from Tripadvisor
What a fantastic day I had on this boat trip! It was my birthday (72) and the crew went out of their way to make it so special . I wanted to snorkel but was nervous but they soon put me at ease. I can’t recommend this trip enough!




Michael S,,Feb 1, 2026
- Review from Viator
A very nice trip / intinerary with a small group which makes things much more pleasant and efficient. The snorkeling was excellent. I have been on several snorkeling trips around the world and this was the first time I had a guide accompany me to tell me about the kinds of marine life I was seeing. Usually you just get your snorkeling gear and are left to yourself to explore. Also the captain changed up the order if the itinerary to avoid larger groups so we had most of the places to ourselves / there were not hoards of others while we were there.
Jeannie L,,Feb 1, 2026
- Review from Viator
We had an amazing day exploring the Ang Thong Marine Park with 100 Degrees East - The crew on the boat could not have done more to make our experience more enjoyable , the attention to detail was impressive , checking the snorkelling equipment before we departed , guiding us around the coral in small groups - diving to improve the underwater photography. They managed to negotiate all the best locations skilfully avoiding the crowds to maximise our experience of this beautiful location.I was also impressed by the genuine kindness of the staff throughout the day - the VIP experience with this company is well worth the money .
755gillw,,Jan 31, 2026
- Review from Tripadvisor
My husband and I joined this tour yesterday (31/01) and it was AMAZING! From start to finish it didn’t disappoint. The team had really thought of everything - towels, beach mats and water bottles, which were a lovely touch, lunch and snacks were fabulous, and the way the team managed our arrival times at each stop to miss the crowds was very impressive. The boat was spacious and comfortable, staff knowledgeable and each one of them so lovely and fun bd we had the best time. Yes, it’s more expensive than similar tours, but you get what you pay for and this is definitely worth paying the extra for. Highly recommend.




fitnessfreak,,Jan 31, 2026
- Review from Tripadvisor
One of the best trips we have ever done. Very high standard of service. The crew were amazing and a credit to the Company. Do not hesitate to book this tour. Excellent
Operated by 100 Degrees East Dive Team