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Klook's choice
Klook's choice
Tours

Angthong Marine National Park by Speedboat or Big Boat

Book now for tomorrow
English guided
Free cancellation
4.4 / 5
(182) • 6K+ booked
€ 30.59
Fall deal
Fall deal
Tours • From Ko Samui

Koh Samui Island Hopping & Snorkeling Tour: Coral and Pig Island

Book now for tomorrow
Hotel pick-up
Private tour
4.4 / 5
(90) • 1K+ booked
From
€ 40.95
Save € 10.20
Tours • From Ko Samui

Angthong National Marine Park Excursion by Big Wooden Teak Boat

Book now for today
English guided
Free cancellation
4.4 / 5
(216) • 5K+ booked
€ 39.05
Tours • From Phuket

Phuket Old Town Private Full-Day Tour

Book now for tomorrow
Hotel pick-up
Private tour
4.4 / 5
(483) • 3K+ booked
€ 75.69
Outdoor & sports activities • Ko Samui

Tree Bridge Zipline Samui

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English guided
3-5 hrs
4.8 / 5
(128) • 4K+ booked
€ 54.10
Klook's choice
Klook's choice
Tours • From Ko Samui

Koh Samui Koh Nangyuan & Koh Tao Full-Day Snorkeling Tour

Hotel pick-up
Free cancellation
Instant confirmation
4.5 / 5
(81) • 2K+ booked
€ 65.55
Klook's choice
Klook's choice
Tours • From Ko Samui

Ko Samui Full-Day Angthong Snorkeling & Kayaking Tour

Book now for tomorrow
Hotel pick-up
English guided
4.4 / 5
(75) • 1K+ booked
€ 65.55
Tours • From Ko Samui

Koh Tan and Koh Mudsum Day Tour from Koh Samui

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Hotel pick-up
Private tour
4.2 / 5
(97) • 2K+ booked
€ 48.95
Fall deal
Klook's choice
Fall deal
Klook's choice
Tours • Ko Samui

Ko Samui Pig Island 4-Hour Private Longtail Boat Tour

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Private tour
English guided
4.3 / 5
(29) • 200+ booked
€ 74.75
Save € 18.64
Klook's choice
Klook's choice
Tours • Ko Samui

Koh Samui Big Buddha & Wat Plai Laem Half-Day Tour

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English guided
Free cancellation
4.7 / 5
(67) • 1K+ booked
€ 25.99
Klook's choice
Klook's choice
Tours • From Krabi Province

Ko Lanta 4 Islands Longtail Boat Tour with Emerald Cave

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Hotel pick-up
Private tour
4.5 / 5
(15) • 400+ booked
€ 35.19
Outdoor & sports activities • From Ko Samui

Koh Samui Muay Thai Boxing Introduction Class for Beginners

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English guided
Morning departure
5.0 / 5
(7) • 100+ booked
€ 15.35
Klook's choice
Klook's choice
Tours

Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui

English guided
Free cancellation
Instant confirmation
4.5 / 5
(83) • 1K+ booked
€ 57.35
Outdoor & sports activities • From Ko Samui

Samui Elephant Kingdom Experience

English guided
Free cancellation
Instant confirmation
4.4 / 5
(31) • 900+ booked
€ 27.79
Tours • Ko Samui

Koh Samui Half-Day City Highlights Tour

Hotel pick-up
English guided
Free cancellation
4.6 / 5
(81) • 1K+ booked
€ 33.45
Outdoor & sports activities • Ko Samui

Authentic Muay Thai Training at Buakaw Village Koh Samui

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Free cancellation
Instant confirmation
5.0 / 5
(3) • 50+ booked
€ 20.95
Outdoor & sports activities • Ko Samui

Samui Hawk Adventure Zipline Park

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English guided
Morning departure
4.6 / 5
(5) • 200+ booked
€ 53.95
Save € 6.00
Outdoor & sports activities • Ko Samui

Elephant World Samui Experience

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English guided
Morning departure
4.7 / 5
(22) • 300+ booked
€ 58.49
Tours • Ko Samui

ATV Adventure Experience in Koh Samui

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English guided
Free cancellation
4.6 / 5
(41) • 900+ booked
€ 57.09
Klook's choice
Klook's choice
Tours • From Ko Samui

Koh Samui Angthong & Koh Wao Yai Full-Day Island Hopping Tour

English guided
Free cancellation
Instant confirmation
4.5 / 5
(15) • 400+ booked
€ 68.15
Klook's choice
Klook's choice
Tours • Ko Samui

Ko Samui Half-Day Sightseeing Jeep Tour

English guided
Free cancellation
Instant confirmation
5.0 / 5
(16) • 200+ booked
€ 55.39
Water activities • Ko Samui

Pig and Tan Island Snorkeling Tour by Speedboat From Koh Samui

Book now for tomorrow
English guided
Morning departure
4.0 / 5
(10) • 800+ booked
€ 43.89
Outdoor & sports activities • From Ko Samui

Samui Elephant Home Half Day Caring Experience

Book now for tomorrow
English guided
Morning departure
5.0 / 5
(77) • 1K+ booked
€ 78.99
Massages

Dusita Spa Experience in Samui

In-app reservation
Free cancellation
Instant confirmation
4.6 / 5
(8) • 100+ booked
€ 27.79
15% off select options

Reviews of Ko Samui activities

Klook会員
2026-09-28 09:02:45
Fantastic 5.0
The hotel pickup was on time and the car was clean. Breakfast on board consisted of bananas, muffins, and drinks. You need to fill out the passenger manifest. The guide tries hard to explain the precautions in English. They talk for a long time, but to summarize: when heading to the island, you will transfer to a smaller boat (a long-tail boat) and get off at the island's floating pier. Your feet won't get wet. The paths on the island consist of extremely steep, ladder-like stairs, so please pay attention to your footwear. Since it is a national park, do not swim outside of designated areas. When snorkeling, please borrow a mask from the staff on the island. Don't lose it. Those who want to kayack can transfer to a kayak from the back of the boat. For that, we will lend you a waterproof bag, so put your valuables in it and take it with you. Also, the boat has free water, cola, and sprite in a cooler box, so please help yourself with a cup. Please throw trash in the trash can. We also sell beer, snacks, instant noodles, and smartphone waterproof cases, so please check them out. The boat travels slowly at around 10 knots. Just take it easy. Along the way, your cell phone signal might drop to 3G. Lunch is served after returning from the first island by small boat, where food is plated one by one in order, cafeteria-style. It is not a buffet. It might be difficult for picky eaters. Please wear a life jacket for kayaking, taking small boats, and snorkeling. On the way back, a tip box will somehow appear. It's a tour you can enjoy even if you don't understand English. However, you can't expect much from the snorkeling. There are no fish and no coral reefs. You would be better off joining a tour to places like Koh Tao where that is the main focus. The underwater area is full of rocks, so even if you wear water shoes, it will hurt. There are showers on the island. You can also change clothes there.
Klook-Nutzer
2026-08-08 13:57:22
Fantastic 5.0
Very well organized and great spots. Only the light breakfast is a bit sparse.
Klook User
2026-07-06 20:47:01
Fantastic 5.0
boat stopped mid way due to broken thing, the guid was insanley good
Kayleigh ******
2026-07-12 05:03:30
Fantastic 5.0
our guides, mikey, Dennis, mr arm & captain jack sparrow were incredible, especially mikey, he was so happy, funny and nothing was to much for him, he also played music. The boat trip itself was very bumpy but me & my family enjoyed that. We didnt see much while snorkeling at koh tao which was slightly disappointing but cant be helped. koh nangyuan was the most beautiful place we have ever seen, my teenagers walked to the viewpoint which they loved. & the water there where you can snorkel was absolutely insane, so clear & warm. We were given toast & hot/cold drinks before we left, then had lunch on a beach at koh tao which was lovely. There was also water/diet coke & Pepsi on board the boat which you could help yourself too. Would recommend this trip.
Klook User
2026-08-19 03:31:12
Fantastic 5.0
excellant driver very nice person flexible always smiling and good conversation we went around most of island stopping briefly in differant places which we wanted he was completley flexible and gave good advise where we needed. travelled with children and he was nice to the also. driver name was AO
LIN *********
2026-09-12 03:12:36
Fantastic 5.0
Prompt pick up at lobby, smooth ride. Clear information, easy to follow instructions. 2hrs on Pigs Island, ample time to take pictures, feed the pigs and chill around. You can even choose to kayak (included) if you want. Free cold drinks provided on speedboat. No hard pressing to purchase anything. Up to 45min snorkeling before returning to Samui for yummy Thai lunch. Overall very satisfied with the tour!
Klook User
2026-08-01 08:23:30
Fantastic 5.0
Great tour, helps you check off the different landmarks around the island of Koh Samui in just a day! The aircon van is also perfect for a hot and sunny day in Koh Samui to chill while going to the next location! One thing i wished could be improved is more introduction to the history of Koh Samui, I felt that there was very little explaination and wished there was more information about the different places and their rich history. Other than that, a very good tour! Would highly recommend!
Klook-Nutzer
2026-08-25 13:37:19
Fantastic 5.0
We had a wonderful day! It started with breakfast after the transfer, consisting of toast and fried dough, jam, peanut butter, as well as Nescafé, water, and juice. There's medication available for seasickness. Afterward, we took a speedboat for about an hour to go snorkeling. Unfortunately, the corals are damaged due to tourism. However, you can still see some fish. We then continued to the main island. Here, you could hike to the viewpoint and go kayaking. Kayaking is unguided, and for the hike, you shouldn't expect an easy path. According to the guide, the ascent and descent take 45 minutes to 1 hour, depending on your fitness level. I personally only went to the first of five viewpoints; even the viewpoint to Emerald Lake is not an easy walk. It involves more ladders than stairs. We were lucky with our guide, Maÿya; she kept everyone in good spirits all day and kept an eye on everyone. Thank you!
Klook User
2026-09-05 08:51:27
Fantastic 5.0
OMG! Out of the world experience. The staff there is so jolly and fun and supportive. They also take your video. There is a tree house which have the most spectacular view of the Jungle and the Ocean. We spent all our afternoon there. Must go!

Ko Samui at a glance

When is the busiest time for things to do in Ko Samui?

Based on when travelers book attractions & activities

Busier than usual Quieter than usual
250
200
150
Avg 100Avg
50
0
113
Jan
113
Feb
102
Mar
217
Apr
138
May
Busiest 232
Jun
46
Jul
42
Aug
Quietest 29
Sep
29
Oct
62
Nov
91
Dec

Bookings from travellers from the United States peak in June at roughly 132% above a typical month, while September is about 71% quieter than usual — expect heavier demand and earlier sell-outs in June. Based on Klook historical booking data.

How much do Ko Samui activities cost?

Plan your budget for these activities

Typical range Typical price
Tours
$33 $68 $57
Outdoor & sports activities
$53 $57 $56
Water activities
$34 $46 $34
Massages
$31 $46 $37
Cruises
$34 $104 $34
$0 $50 $100

The easiest way into activities is typically around USD 34 for Water activities, while Cruises show the widest choice with a typical spread of USD 70 between lower and upper options. Based on Klook booking data, August 2025 – July 2026.

How far ahead should you book?

Plan ahead so you don’t miss out

1 daysLast-minute
1 daysTypical
4 daysEarly

Travellers typically book about 1 day ahead, which means plenty of flexibility but watch for reduced availability in June, the peak month named in the demand card. Based on Klook booking data, February 2026 – July 2026.

What to know before visiting Ko Samui

What to expect in Ko Samui

The things-to-do catalogue is led by Tours, Outdoor & sports activities, Water activities, Massages and Cruises, which gives a mix of guided tours, active outdoor options and water-based experiences for different budgets. That spread means travelers can stack a budget-friendly water activity with a higher-end tour or a premium cruise depending on how they want to split their time. Demand peaks in June and is quietest in September, so availability is tightest in June and slackest in September.

Deciding what to book for your trip

The main choice is whether you want the widest variety or the most affordable entry point: Cruises show the widest range with a typical price around USD 34 and upper-end options up to USD 104, offering everything from low-cost sailings to premium experiences. For simple, predictable options, Water activities are the most affordable way in with a typical price around USD 34, while Outdoor & sports activities sit in a narrow range around USD 56, so shopping around gains little.

If you want a fuller experience that can vary by provider, consider Tours, which are the priciest on average at USD 57 but cover a broad set of formats and comfort levels. Massages and cruises fill mid-range niches where what you get for the price can differ significantly between providers, so check descriptions if you care about specifics.

When travelers from the United States typically book

Most travelers here book very close to travel, with most reservations made about 1 day ahead and the earliest planners booking about 4 days out. That means last-minute planning is common and few activities need months of advance notice; padding your plan matters most for travel in June, when demand is highest.

How prices compare across popular activities

The table below shows typical prices and the usual range across the city's top categories so you can set a budget before choosing.

Category Typical Price Usual Range
Tours USD 57 USD 33 – 68
Outdoor & sports activities USD 56 USD 53 – 57
Water activities USD 34 USD 34 – 46
Massages USD 37 USD 31 – 46
Cruises USD 34 USD 34 – 104

Typical price is the median paid on Klook; the usual range covers the middle half of bookings, so cheaper and pricier options exist outside it; prices are shown with their currency code. Based on Klook booking data, August 2025 – July 2026.

FAQs about Ko Samui

What are the most popular things to do in Koh Samui?

How much do activities in Koh Samui typically cost?

Which activities are the cheapest, and which are the most expensive in Koh Samui?

How far ahead should I book activities in Koh Samui?

When are activities busiest in Koh Samui, and when is it quieter?