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Recommended

Angthong Marine National Park by Speedboat or Big Boat
Tours

Angthong Marine National Park by Speedboat or Big Boat

Book now for tomorrow
English guided
Free cancellation
4.4 / 5
(179) • 6K+ booked
US$ 34.29
Koh Samui Island Hopping & Snorkeling Tour: Coral and Pig Island
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
(88) • 1K+ booked
From
US$ 45.89
Sale 20% off
Tree Bridge Zipline Samui
Klook's choice
Outdoor & sports activities • Ko Samui

Tree Bridge Zipline Samui

Book now for tomorrow
English guided
3-5 hrs
4.8 / 5
(128) • 4K+ booked
US$ 60.69
Angthong National Marine Park Excursion by Big Wooden Teak Boat
Tours • From Ko Samui

Angthong National Marine Park Excursion by Big Wooden Teak Boat

Book now for tomorrow
English guided
Free cancellation
4.4 / 5
(216) • 5K+ booked
US$ 43.79
Ko Samui Full-Day Angthong Snorkeling & Kayaking Tour
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
US$ 73.49
Phuket Old Town Private Full-Day Tour
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
US$ 84.89
Koh Tan and Koh Mudsum Day Tour from Koh Samui
Tours • From Ko Samui

Koh Tan and Koh Mudsum Day Tour from Koh Samui

Book now for tomorrow
Hotel pick-up
Private tour
4.2 / 5
(97) • 2K+ booked
US$ 54.89
Koh Samui Big Buddha & Wat Plai Laem Half-Day Tour
Klook's choice
Tours • Ko Samui

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

Book now for tomorrow
English guided
Free cancellation
4.7 / 5
(65) • 1K+ booked
US$ 29.15
Koh Samui Koh Nangyuan & Koh Tao Full-Day Snorkeling Tour
Tours • From Ko Samui

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

Book now for tomorrow
Hotel pick-up
Free cancellation
4.5 / 5
(80) • 2K+ booked
US$ 73.49
ATV Adventure Experience in Koh Samui
Tours • Ko Samui

ATV Adventure Experience in Koh Samui

Book now for tomorrow
English guided
Free cancellation
4.6 / 5
(41) • 900+ booked
US$ 64.00
Koh Samui Half-Day City Highlights Tour
Tours • Ko Samui

Koh Samui Half-Day City Highlights Tour

Book now for tomorrow
Hotel pick-up
English guided
4.6 / 5
(81) • 1K+ booked
US$ 37.49
Samui Hawk Adventure Zipline Park
Outdoor & sports activities • Ko Samui

Samui Hawk Adventure Zipline Park

Book now for today
English guided
Morning departure
4.6 / 5
(5) • 200+ booked
US$ 60.55
Sale 10% off
Ko Samui Pig Island 4-Hour Private Longtail Boat Tour
Klook's choice
Tours • Ko Samui

Ko Samui Pig Island 4-Hour Private Longtail Boat Tour

Book now for today
Private tour
English guided
4.3 / 5
(27) • 200+ booked
US$ 83.80
Sale 20% off
Ko Lanta 4 Islands Longtail Boat Tour with Emerald Cave
Tours • From Krabi Province

Ko Lanta 4 Islands Longtail Boat Tour with Emerald Cave

Book now for tomorrow
Hotel pick-up
Private tour
4.5 / 5
(15) • 400+ booked
US$ 39.45
Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui
Tours

Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui

Book now for tomorrow
English guided
Free cancellation
4.5 / 5
(82) • 1K+ booked
US$ 64.29
Samui Elephant Home Half Day Caring Experience
Outdoor & sports activities • From Ko Samui

Samui Elephant Home Half Day Caring Experience

Book now for today
English guided
Morning departure
4.9 / 5
(76) • 1K+ booked
US$ 88.55
Samui Elephant Kingdom Experience
Outdoor & sports activities • From Ko Samui

Samui Elephant Kingdom Experience

Book now for tomorrow
English guided
Free cancellation
4.4 / 5
(30) • 900+ booked
US$ 31.15
Pig and Tan Island Snorkeling Tour by Speedboat From Koh Samui
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
(6) • 700+ booked
US$ 49.19
Elephant World Samui Experience
Outdoor & sports activities • Ko Samui

Elephant World Samui Experience

Book now for tomorrow
English guided
Morning departure
4.7 / 5
(21) • 300+ booked
US$ 65.59
Koh Samui Pig Island & Koh Tan Half-Day Snorkeling Tour
Tours • Ko Samui

Koh Samui Pig Island & Koh Tan Half-Day Snorkeling Tour

Book now for tomorrow
Hotel pick-up
English guided
4.0 / 5
(33) • 800+ booked
US$ 65.39
Authentic Muay Thai Training at Buakaw Village Koh Samui
Outdoor & sports activities • Ko Samui

Authentic Muay Thai Training at Buakaw Village Koh Samui

Book now for today
Free cancellation
Instant confirmation
5.0 / 5
(2) • 50+ booked
US$ 24.59
Surat Thani Half-Day 4x4 Jungle Adventure with Lunch
Klook's choice
Tours • Ko Samui

Surat Thani Half-Day 4x4 Jungle Adventure with Lunch

Book now for tomorrow
Small group
Free cancellation
4.7 / 5
(69) • 1K+ booked
US$ 63.69
Dusita Spa Experience in Samui
Massages

Dusita Spa Experience in Samui

In-app reservation
Free cancellation
Instant confirmation
4.6 / 5
(8) • 100+ booked
US$ 31.15
Sale 15% off
Koh Samui Angthong & Koh Wao Yai Full-Day Island Hopping Tour
Tours • From Ko Samui

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

Book now for tomorrow
English guided
Free cancellation
4.5 / 5
(15) • 400+ booked
US$ 76.45

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.
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
2026-04-11 14:29:19
Fantastic 5.0
Guide Khun Aoddy is very good care of all the guests, always entertain guests and good knowledge. strongly recommend him to your visiting.
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 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
Chang ****************
2026-04-27 13:24:20
Fantastic 5.0
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.
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!
Dang *******
2026-05-03 15:25:52
Fantastic 5.0
Very beautiful place to visit, the motto is very meaningful, however the trip is a bit short, and the trip could be adjusted to a more friendly price

Ko Samui at a glance

When is the busiest time to visit Ko Samui?

Based on what travelers booked on Klook

Busier than usual Quieter than usual
+200%
+100%
Typical
-100%
+13%
Jan
+13%
Feb
+2%
Mar
+117%
Apr
+38%
May
Busiest +132%
Jun
-54%
Jul
-58%
Aug
-71% Quietest
Sep
-71%
Oct
-38%
Nov
-9%
Dec

Bookings from travellers from the United States peak in June (about 132% above a typical month) while September is the quietest (roughly 71% lower); expect higher demand and limited availability 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

Water activities are typically the easiest way in at around USD 34, while Cruises show the widest price spread—about USD 70 between cheaper and pricier options—so you’ll find the broadest choice there. 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 implies good last‑minute flexibility but markedly higher competition in June; travellers from the United States may still want to confirm peak‑season plans earlier. Based on Klook booking data, February 2026 – July 2026.

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 water activities also popular — bookings build through the spring and peak in June before falling sharply into the late-year trough. Expect the island’s busiest booking period around June, while September and October are noticeably quieter for things to do.

Best activities for families, couples and solo travellers

Families will find day tours and gentle water activities a natural fit, as these categories offer straightforward, family-friendly options and plenty of choices. Couples often gravitate toward outdoor adventures and cruises for scenic, shared experiences that feel a bit more special. Solo and small-group travellers can pick from a wide range of tours and sports activities that cater to independent exploration or joining small-group outings.

What travellers from the United States book ahead

Most visitors from the United States book fairly close to travel — most things can be arranged a day or two out — but the earliest planners still secure bookings around four days in advance. Booking ahead matters most for travel in June, when demand peaks and availability tightens.

How categories compare on price and who they suit

Water activities are the easiest way in on price, typically representing the most budget-friendly options, while tours sit toward the higher end of the typical price range. Cruises show the widest spread of prices, so they can suit budget-conscious travellers as well as those after a premium experience depending on the choice. Outdoor & sports activities and massages sit in the mid-range and appeal to travellers seeking active or restorative experiences without moving into the priciest bracket.

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?