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Recommended
Angthong Marine National Park by Speedboat or Big Boat
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English guided
Free cancellation
(177) • 6K+ booked
€ 26.19
Angthong National Marine Park Excursion by Big Wooden Teak Boat
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English guided
Free cancellation
(214) • 5K+ booked
€ 18.05
Koh Samui Island Hopping & Snorkeling Tour: Coral and Pig Island
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Hotel pick-up
Private tour
(88) • 1K+ booked
From
€ 43.75
Koh Samui Koh Nangyuan & Koh Tao Full-Day Snorkeling Tour
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Hotel pick-up
Free cancellation
(79) • 2K+ booked
€ 56.05
Klook's choice
€ 48.39
Koh Tan and Koh Mudsum Day Tour from Koh Samui
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Hotel pick-up
Private tour
(96) • 2K+ booked
€ 41.85
Ko Samui Full-Day Angthong Snorkeling & Kayaking Tour
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Hotel pick-up
English guided
(74) • 1K+ booked
€ 56.05
ATV Adventure Experience in Koh Samui
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English guided
Free cancellation
(41) • 900+ booked
€ 48.85
Phuket Old Town Private Full-Day Tour
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Hotel pick-up
Private tour
(483) • 3K+ booked
€ 64.75
Klook's choice
Koh Samui Big Buddha & Wat Plai Laem Half-Day Tour
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English guided
Free cancellation
(64) • 1K+ booked
€ 22.25
Samui Elephant Kingdom Experience
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English guided
Free cancellation
(29) • 900+ booked
€ 24.85
HKD30 off
Samui Hawk Adventure Zipline Park
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English guided
Morning departure
(4) • 200+ booked
€ 53.65
Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui
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English guided
Free cancellation
(82) • 1K+ booked
€ 49.05
Klook's choice
Koh Samui Half-Day City Highlights Tour
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Hotel pick-up
English guided
(81) • 1K+ booked
€ 28.59
Pig and Tan Island Snorkeling Tour by Speedboat From Koh Samui
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English guided
Morning departure
(6) • 700+ booked
€ 39.25
Fall deal
Klook's choice
Ko Samui Pig Island 4-Hour Private Longtail Boat Tour
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Private tour
English guided
(27) • 200+ booked
€ 63.95
Elephant World Samui Experience
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English guided
Morning departure
(21) • 300+ booked
€ 52.35
Klook's choice
Ko Lanta 4 Islands Longtail Boat Tour with Emerald Cave
Hotel pick-up
Private tour
English guided
(15) • 400+ booked
€ 30.09
Klook's choice
Surat Thani Half-Day 4x4 Jungle Adventure with Lunch
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Small group
Free cancellation
(67) • 1K+ booked
€ 48.59
HKD30 off
Dusita Spa Experience in Samui
In-app reservation
Free cancellation
Instant confirmation
(8) • 100+ booked
€ 24.85
Klook's choice
Koh Samui Pig Island & Koh Tan Half-Day Snorkeling Tour
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Hotel pick-up
English guided
(33) • 800+ booked
€ 49.89
Klook's choice
Koh Phangan/Koh Samui: Day Tour to Ang Thong with Snorkel & Lunch
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English guided
Free cancellation
(7) • 100+ booked
€ 69.35
Koh Samui Angthong & Koh Wao Yai Full-Day Island Hopping Tour
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English guided
Free cancellation
(15) • 400+ booked
€ 58.30
Koh Samui Muay Thai Boxing Introduction Class for Beginners
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English guided
Morning departure
(7) • 100+ booked
€ 15.45
Reviews of Ko Samui activities
Klook User
2026-03-17 01:12:45
Excellent, really worth the money. Breakfast was light but good. They gave out motion sickness pills, but the travel across to the national park was lovely. To be greeted by Dolphins. Our guide, Ken, was brilliant at explaining everything well and keeping us all in line 😂The hike up was quite arduous fabulous views of the surrounding island, that takes one hour. But you can relax on the beach, deckchairs 50 baht for 2 hours and a shop. Next stop the kayaking, it is only 30 mins round to the next beach but it is tiring if you are not a regular kayaker. Finally the emerald lake is very steep steps going up and down, again quite tiring but not as bad as the hike, nice and interesting at the top. There is a shop at the bottom to reward yourself with an ice cream! All the staff are really helpful and you can see they enjoy it. The itinery may change around depending on the weather. The crossing back to Samui was very choppy like a roller coaster but we loved it! All in all a great day
Klook User
2026-03-09 04:36:28
From the moment we pick up until we go back it was more than perfect time and service.
kym ******
2026-03-12 05:28:17
Had a nice Islqnd Tour all the way around Koh Samui and everything was on par, no delay with pickup and all stops were informative and interesting. The waterfall and elephant interaction on the last stop was the best part for me! The guide tended to waffle on a bit towards the end and we lost time at the temples due to this! Thank You tho i had a great day as this trip i can’t do boat trips so this was a perfect alternative for us!
Klook User
2026-04-11 14:29:19
Guide Khun Aoddy is very good care of all the guests, always entertain guests and good knowledge. strongly recommend him to your visiting.
Delia ***
2026-05-20 23:29:33
We were very well taken care of by the Insea team. The itinerary was planned well and we saw beautiful sceneries. Was able to see some fishes while snorkeling but it's not crystal clear waters full or multicoloured corals (don't expect that). The hike up Oha Jun-Jaras nature trail was no mean feat (500m to the top but you can turn around at the various viewpoints for a similarly breathtaking view) Buffet lunch was alright. Koh Mae Koh was the last stop and it was very beautiful as well. This lookout point is only 150m but the steps are steep.
Chang ****************
2026-04-27 13:24:20
導遊：Friendly and attentive
船況：Clean, comfortable and spacious. Complimentary bottle water and soft drink provided
行程安排：First stop was the Pig Island. We stayed for around 2.5hrs on the island. There are a few places where you can buy a coffee/beer, relax and just watch the pigs roam around. Second stop we went snorkelling in the waters outside Koh Tan. The reef and marine life weren’t very impressive but all in all a good day out. Buffet lunch provided at the pier where the tour started.
HU *****
2026-03-01 05:19:28
Because it's a large boat, there are a lot of tourists. If you like to sunbathe, go to the third floor. Most people sit on the second floor; the engine on the first floor is too noisy. The food is good for a day trip. There's cake and coffee in the morning, and the fried chicken actually tastes pretty good for lunch. There are also banana cakes and drinks available in the afternoon, so the food is definitely a plus. A bottle of drinking water is provided for the morning itinerary. Climbing the mountain is not easy; the steps are very large, so be sure to wear comfortable athletic shoes. A large waterproof bag will be provided for the afternoon kayaking, so you don't need to bring your own. Remember to change into your swimsuit and flip-flops. The downside is that the large boat is relatively slow, taking 2 hours each way, and you have to change to a smaller boat to reach the island, which is quite tiring.
wong *******
2026-04-07 11:30:54
This was my first time joining a snorkeling tour. In the morning, a dedicated vehicle picked me up from the hotel, which was convenient and punctual. After arriving at the pier, I registered, put on a wristband, and waited until it was time to board the boat. Before boarding, someone took my picture; if I liked it, I could purchase it upon returning to the pier. During the trip and while snorkeling, I could follow the crew. They helped take underwater photos and would notify us if a sea turtle appeared. Unfortunately, I didn't see any that day, and the underwater coral wasn't as good as I imagined, nor were there many fish, which was a bit disappointing. The hour-plus boat ride out didn't seem entirely worth it. On the way back, the waves were incredibly strong; it felt like a roller coaster for almost two-thirds of the journey. It's best to take motion sickness medication beforehand, just in case. If you feel unwell on the boat, you can tell a crew member, and they will provide a plastic bag.
Aljona ********
2026-06-18 12:00:36
Evenings, we still sit there and just say: Wow! That was by far the coolest adventure and the highlight of our vacation.
The quad tour was simply incredible – through water, up and down the mountains, with beautiful views. Everything was explained perfectly, and we felt safe the entire time.
But the best part was the guides, especially Kodi. So friendly, attentive, and motivating! They always made sure no one was left behind. I was really scared of the zipline, but Kodi encouraged me the whole time and told me I could do it. Luckily, I listened to him – it was one of the highlights of the day!
It was also great that the guides took our phone and took photos and videos during the tour. Now we have incredibly beautiful memories of that day.
Many thanks to Kodi and the entire team. You made this excursion unforgettable. Absolutely recommended – our best day on Koh Samui! 🌴🛵⛰️📸✨❤️
Ko Samui at a glance
What to know before visiting Ko Samui
Top experiences and seasonal rhythm
Koh Samui is best known for its tours and outdoor & sports activities, with boat-based water activities also popular—tours lead the bookings while outdoor adventures follow. Demand rises and falls through the year: activity picks up sharply around 2月 and is quietest in 10月, with shoulder-month movement in between.
Best activities for families, couples and solo travellers
Families will find tours and gentle water activities the easiest to enjoy together, since tours dominate bookings and water options are the cheapest entry point. Couples often favour outdoor and sports activities or cruises for more active or romantic days out. Solo travellers and small groups can pick up a range of options across tours and outdoor activities, which offer many mid-range and varied experiences.
What travellers from 香港 should book ahead
Most travellers from 香港 keep plans flexible — typical bookings are made a couple of days out, though the earliest planners tend to reserve around six days in advance. Booking ahead matters most in 2月, when demand peaks; if you’re travelling then, consider locking in popular tours and outdoor activities earlier than usual.
How categories compare on price and who they suit
Water activities are the easiest way in, sitting at the lowest typical price point, while tours represent the priciest median level in Koh Samui. Cruises show the widest spread of options, from budget to premium, so they can suit both value seekers and those after a special splurge. Outdoor & sports activities occupy a steady mid-range position and are a good match for active travellers and couples looking for memorable experiences.
FAQs about Ko Samui
What are the most popular things to do in Koh Samui?
What are the most popular things to do in Koh Samui?
How much do activities in Koh Samui typically cost?
How much do activities in Koh Samui typically cost?
Which activities are the cheapest, and which are the most expensive in Koh Samui?
Which activities are the cheapest, and which are the most expensive in Koh Samui?
How far ahead should I book activities for Koh Samui if I'm travelling from Hong Kong?
How far ahead should I book activities for Koh Samui if I'm travelling from Hong Kong?
When are activities in Koh Samui busiest and when is it quieter?
When are activities in Koh Samui busiest and when is it quieter?