Top picks for Koh Samui Water activities
Discover 39 Water activities in Koh Samui on Trip.com, updated 11 August 2026, with experiences lasting from 1 to 9 hours. Find the perfect adventure for your day!
From SAR 37.12 per person, with an average total of SAR 281.43. Choose the option that suits your plan.
With 428 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 202 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 12 August 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
August is the perfect time to visit Koh Samui! Choose from 39 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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39 results for Koh Samui Water activities
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Duration: 5.2 hrsEnglish4.4/5· 75 reviews· 1.3k bookedFromSAR 154.31
Duration: 6.6 hrsEnglish4.6/5· 39 reviews· 722 bookedFromSAR 202.38
Duration: 9.1 hrsEnglish4.5/5· 26 reviews· 377 bookedFromSAR 126.49
FromSAR 143.58
Duration: 8.5 hrsEnglish4.7/5· 18 reviews· 206 bookedFromSAR 267.52
Duration: 3.1 hrsEnglish4.0/5· 1 reviewFromSAR 177.08
Duration: 2–8 hrsEnglish5.0/5· 2 reviewsFromSAR 37.12
Duration: 4 hrsEnglish3.6/5· 5 reviews· 142 bookedFromSAR 198.65
Duration: 4 hrsEnglish3.9/5· 21 reviews· 340 bookedFromSAR 171.40
Duration: 8.5 hrsEnglish21 bookedFromSAR 129.23
Duration: 8.5 hrsEnglish4.7/5· 3 reviews· 50 bookedFromSAR 306.22
Duration: 5–8 hrsEnglish2.0/5· 1 review· 35 bookedFromSAR 154.67
Duration: 3.4 hrsEnglish2.0/5· 1 review· 67 bookedFromSAR 161.39
Trip.SelectDuration: 6.5 hrsEnglish4.7/5· 20 reviews· 629 bookedFromSAR 204.79
Duration: 8.3 hrsEnglish4.7/5· 7 reviews· 45 bookedFromSAR 249.30
Duration: 1 dayEnglish5.0/5· 1 review· 29 bookedFromSAR 299.95
Duration: 5 hrsEnglishFromSAR 235.10
Duration: 7 hrsEnglish3.5/5· 2 reviews· 89 bookedFromSAR 416.25
Duration: 8.5 hrsEnglish4.8/5· 4 reviews· 133 bookedFromSAR 212.50
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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 User2026-08-05
I liked how convenient everything was. From the comfort of your room, with just a few simple steps, you can choose and pay for a fascinating excursion. Within an hour, the tour organizers contacted me with the details. In the morning, they picked me up in a free minivan, drove me to the ferry departure point in maximum comfort, and then returned me to the hotel. Thank you for this opportunity. The excursion was excellent. The pigs were friendly, and the views were stunning. True, as some reviews have mentioned, the water for snorkeling was a bit murky, but there were fish. It was a great time. The organization was excellent. Thank you!★
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Reviews: 1-day tour to Mu Ko Ang Thong National Marine Park from Koh Samui [snorkeling/lunch/transfer/kayaking]
Guest User2026-08-08
Very cool excursion! We have snorkled, then kayaked, had lunch (which was pretty decent). Probably you need sneakers to go hiking, so i skipped that part, but in general awesome experience which I totally recommend.★
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Reviews: Koh Samui Departure: Mu Ko Ang Thong National Park Sightseeing and Snorkeling|Upgradable kayaking adventure
Guest User2026-08-10
The guides were very professional and caring. They explained all the rules in advance, prepared motion sickness pills for those who didn't bring any, and explained the best way to sit on the boat depending on their health. The views from the seats on the outer (bow) of the boat are magnificent, but be prepared for the scorching sun and dress appropriately to avoid sunburn throughout the day. Ang Thong National Park itself, in my opinion, is definitely worth a visit: beautiful islands, clear water, a varied program, and the option to choose between climbing to high vantage points or relaxing on the beach.★
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Reviews: One-day tour to Angthong Marine National Park
Guest User2026-08-03
A great excursion! For the price, you get a lot of fun: snorkeling, kayaking, a hike to the observation decks, a delicious lunch, and just swimming! The views from the observation decks are simply stunning!★
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Reviews: From Koh Samui: Day Tour Ang Thong with Kayak, Snorkel & Lunch
Guest User2026-07-26
This day trip to Ang Thong was simply awesome!! If you were looking for a sign as to which tour to book this is it, look no further! The islands are and viewpoints are beautiful of course, but the real highlight of the trip in my opinion are the tour guides! My group got assigned to the lead tour guide (I forgot his name), who was full of energy, humour, and very knowledgeable about the park. On top of that the tour guides also offer to take everyone’s pictures on viewpoints. Bring some sneaker shoes in addition to your flip flops for the hike part (it is not hard but steep and with rocks or steps, definitely more comfortable to climb in closed shoes). On the boat ride to the park in the morning I would recommend to sit on each side of the boat, avoid the front (bumpier) and the back (open side, will get drenched).★
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Reviews: Koh Madsum + Tean Island premium speedboat/Neptune boat double island hopping/snorkeling experience/island-wide transfer
Guest User2026-07-24
Everything was fine!
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