Top picks for Koh Samui Water activities
Discover 34 Water activities in Koh Samui on Trip.com, updated 1 November 2026, with experiences lasting from 1 to 9 hours. Find the perfect adventure for your day!
From TWD 1,073 per person, with an average total of TWD 2,537. Choose the option that suits your plan.
With 487 verified reviews, Water activities Koh Samui boast an average rating of 4.2.
This week's most popular Water activities: "One-day tour to Angthong Marine National Park", with 208 reviews and a 4.5 rating.
Now on Trip.com: "Departing from Koh Samui: Koh Madsum & Tean Island snorkeling experience | dolphin chasing tour upgrade available", a 5-hour adventure in Koh Samui!
The next available day tour departs on 2 November 2026. Book now to secure your spot!
Koh Samui Water activities usually take about 5 hours — perfect for a relaxed, immersive experience!
100% of Koh Samui Water activities now offer English-speaking guides
November is the perfect time to visit Koh Samui! Choose from 34 available day tours, including seasonal favorites like One-day tour to Angthong Marine National Park.
Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.
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34 results for Koh Samui Water activities
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4.4/5· 97 reviews· 1.7k bookedFree cancellationBook now for tomorrow290 travellers savedFromTWD 1,309![1-day tour to Mu Ko Ang Thong National Marine Park from Koh Samui [snorkeling/lunch/transfer/kayaking]](https://ak-d.tripcdn.com/images/0351412000qlnax6s3A36_C_568_320.jpg?_fr=wc)
4.6/5· 45 reviews· 920 bookedFree cancellation91.1% of travelers recommendFromTWD 1,717
4.5/5· 32 reviews· 510 bookedFree cancellation61 travellers savedFromTWD 1,073
3.6/5· 5 reviews· 161 bookedFree cancellationInstant confirmationBook now for tomorrow9% offLimited-time saleFromTWD 1,517TWD 1,685
4.6/5· 5 reviews· 61 bookedFree cancellationInstant confirmation10% offLimited-time saleFromTWD 2,337TWD 2,597
Trip.Select4.7/5· 27 reviews· 860 bookedFree cancellation157 travellers savedFromTWD 1,802![Depart from Koh Samui: Private Charter Boat Tour [Snorkeling + Island Hopping]|Longtail Boat (Optional)|Speedboating, etc.](https://ak-d.tripcdn.com/images/0353512000hf641s1F60F_C_568_320.jpg?_fr=wc)
4.2/5· 5 reviews· 33 bookedFree cancellationFromTWD 2,571![7-hour diving and snorkeling experience at Tean Island from Khanom [Koh Samui departure] Pink Dolphin Discovery 1-day tour by speedboat](https://ak-d.tripcdn.com/images//0580z12000n3owl87DB91_C_568_320.jpg?_fr=wc)
5.0/5· 1 review· 35 bookedFree cancellationFromTWD 2,639
4.7/5· 21 reviews· 232 bookedFree cancellationInstant confirmation10% offLimited-time saleFromTWD 2,042TWD 2,269
4.5/5· 208 reviews· 818 bookedFree cancellation239 travellers savedFromTWD 1,263
3.9/5· 21 reviews· 367 bookedFree cancellationFromTWD 1,459
FromTWD 1,137
2.0/5· 1 review· 81 bookedFree cancellationFromTWD 1,420![Thailand Koh Samui Tean Island Diving and Snorkeling Experience 4-8 Hours [Pig Island Speedboating 1-Day Tour/Half-Day Tour + Meal]](https://ak-d.tripcdn.com/images/0356y12000jluy2cx8928_C_568_320.jpg?_fr=wc)
FromTWD 2,100
4.0/5· 1 reviewFree cancellationFromTWD 1,502
3.5/5· 2 reviews· 85 bookedFree cancellation65 travellers savedFromTWD 3,759
4.2/5· 6 reviews· 157 bookedFree cancellationBook now for tomorrow54 travellers savedFromTWD 1,802
4.8/5· 8 reviews· 58 bookedFree cancellationInstant confirmation10% offLimited-time saleFromTWD 1,903TWD 2,115
5.0/5· 2 reviews· 44 bookedFree cancellationFromTWD 1,717
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Reviews/Trip Moments
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Reviews: Departing from Koh Samui: Koh Madsum & Tean Island snorkeling experience | dolphin chasing tour upgrade available
Guest User2026-10-05
The pigs simply stole our hearts. We never would have thought we loved pigs so much. 😁. Definitely a must-see!★
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Reviews: 1-day tour to Mu Ko Ang Thong National Marine Park from Koh Samui [snorkeling/lunch/transfer/kayaking]
Guest User2026-09-08
The route matched the description. The excursion itself was wonderful. I highly recommend it. We were with the Funny Day team. They're great guys, but there was one major drawback I didn't like. On the way back from the archipelago to Koh Samui, we ran out of gas. Oh well, it happens. We first took some gas from a boat traveling alongside, but it wasn't enough. Then we waited for a second boat to bring gas and pick up some of the people. And it seemed like everything should go smoothly from there, but no! The new boat also ran out of gas 100 meters from the beach. And we waited for a third boat. They need to fix this urgently and bring extra gas. Otherwise, the excursion itself, the views, the snorkeling, and the kayaking were amazing. The views from the observation deck are incredibly beautiful, but the climb is very difficult and is best done in sneakers.★
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Reviews: Koh Samui Departure: Mu Ko Ang Thong National Park Sightseeing and Snorkeling|Upgradable kayaking adventure
Guest User2026-10-08
Well organised! Incredible views and the staff is so nice! English speaking and helpful taking pictures!★
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Reviews: Koh Samui: Private Longtail Boat to Pig Island with Snorkel
Guest User2026-07-27
We have nothing negative to report, even though the island is relatively crowded. The children were delighted and had a great time. Departure from Koh Samui, pick-up from Koh Madsum, and the snorkeling trip went perfectly and as agreed. Our "captain" was very friendly, reliable, and punctual. We would definitely book through this company again 👍🏼★
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Reviews: From Koh Phangan: Day Tour Ang Thong with Kayak, Snorkel & Lunch
Guest User2026-10-12
A fantastic and varied tour. It included everything from a short hike to snorkeling. The scenery was breathtaking and the crew was really friendly.★
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Reviews: Koh Samui: Koh Tao and Ko Tao + Nang Yuan Island 1-day tour speedboat snorkeling with hotel transfer and lunch included
Guest User2026-09-30
A perfectly organized trip! They picked us up from the hotel, took us to the pier, gave us something to drink, fed us, and then we were off! Everything was explained clearly, even with my limited English. We arrived back on time and were dropped off home. Thanks for the trip!
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Koh Samui: Introduction Group Class Muay Thai Boxing for BeginnersHalf-day elephant tour to Koh Samui Elephant Kingdom, Thailand.Koh Samui 1-day tour to Ang Thong National Marine Park by big boat - Optional kayaking - English-speaking guideKoh Samui: Introduction Private Class Muay Thai Boxing for BeginnersFrom Koh Phangan: Day Tour Ang Thong with Kayak, Snorkel & LunchKoh Samui MR.TU Sea Fishing: Fresh Seafood Processing|Professional Fishing BoatKoh Madsum + Tean Island premium speedboat/Neptune boat double island hopping/snorkeling experience/island-wide transfer1-day tour to Mu Ko Ang Thong National Marine Park from Koh Samui Koh Samui Private Driver Tour Custom Route, Hotel & Port PickupFrom Koh Samui: Island Sightseeing Shared Tour by Army JeepDeparting from Koh Samui: Koh Madsum & Tean Island snorkeling experience | dolphin chasing tour upgrade availableKoh Samui Departure: Mu Ko Ang Thong National Park Sightseeing and Snorkeling|Upgradable kayaking adventureOne-day tour to Angthong Marine National ParkThailand Koh Samui Day Tour Koh Samui vintage red sailing boat sunset tour with pickup service and buffetKoh Samui Connectivity SolutionsKoh Samui Bus TicketsKoh Samui Airport ServicesKoh Samui Boat TicketsKoh Samui Day ToursKoh Samui SIM CardKoh Samui ActivitiesKoh Samui ClassesKoh Samui Travel ServicesKoh Samui Yacht CharterKoh Samui TransportationKoh Samui Sports & AdventureKoh Samui Cultural ExperienceKoh Samui Group ToursThings to do in ShanghaiThings to do in BeijingThings to do in Hong KongThings to do in OsakaThings to do in ZhangjiajieThings to do in SingaporeThings to do in ChongqingThings to do in TokyoThings to do in GuangzhouThings to do in Xi'anThings to do in ChinaThings to do in JapanThings to do in ThailandThings to do in VietnamThings to do in South Korea