Top Koh Samui Day Tours

Discover 72 Day tours in Koh Samui on Trip.com, updated August 14, 2026, with experiences lasting from 1 to 9 hours. Find the perfect adventure for your day!

From US$21.77 per person, with an average total of US$47.51. Choose the option that suits your plan.

With 527 verified reviews, Day tours Koh Samui boast an average rating of 4.5.

This week's most popular Day tours: "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 August 15, 2026. Book now to secure your spot!

Koh Samui Day tours usually take about 5 hours — perfect for a relaxed, immersive experience!

100% of Koh Samui Day tours now offer English-speaking guides

August is perfect for visiting Koh Samui! Choose from 72 available day tours, including seasonal hits 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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72 results for Koh Samui Day tours

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Reviews/Trip Moments

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!
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.
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.
Reviews: 1-day tour to Koh Samui 4x4 off-road island adventure: Hin Ta and Hin Ya + Na Muang waterfall
Guest User2026-05-18
The itinerary was fulfilling, and the scenery at each destination was breathtaking. The arrangements were well-planned, and there was great interaction with fellow travelers. The tour guide was also incredibly humorous and engaging, introducing many fascinating things. It was truly an eye-opening and worthwhile trip!
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).
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!