Explore Ko Samui
Things to do
Hotels
Transport
62 results found

Sort by

Recommended

Klook's choice
Klook's choice
Tours

Angthong Marine National Park by Speedboat or Big Boat

English guided
Free cancellation
Instant confirmation
4.4 / 5
(183) • 6K+ booked
Rp 538,590
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
(91) • 1K+ booked
From
Rp 748,425
Save Rp 187,106
Outdoor & sports activities • Ko Samui

Tree Bridge Zipline Samui

Book now for tomorrow
English guided
3-5 hrs
4.8 / 5
(130) • 4K+ booked
Rp 996,392
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
Rp 1,333,011
Klook's choice
Klook's choice
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
(81) • 2K+ booked
Rp 1,154,124
Klook's choice
Klook's choice
Tours • Ko Samui

Ko Samui Pig Island 4-Hour Private Longtail Boat Tour

Book now for tomorrow
Private tour
English guided
4.4 / 5
(30) • 200+ booked
Rp 1,315,776
Save Rp 328,944
Tours • From Ko Samui

Angthong National Marine Park Excursion by Big Wooden Teak Boat

English guided
Free cancellation
Instant confirmation
4.4 / 5
(216) • 5K+ booked
Rp 687,855
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
Rp 861,744
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
(76) • 1K+ booked
Rp 1,154,124
Outdoor & sports activities • Ko Samui

Samui Hawk Adventure Zipline Park

Book now for tomorrow
English guided
Morning departure
4.6 / 5
(5) • 200+ booked
Rp 1,104,110
Klook's choice
Klook's choice
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
Rp 619,379
Tours • Ko Samui

Koh Samui Half-Day City Highlights Tour

Book now for tomorrow
Hotel pick-up
English guided
4.6 / 5
(82) • 1K+ booked
Rp 588,604
Klook's choice
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
(67) • 1K+ booked
Rp 457,802
Klook's choice
Klook's choice
Tours

Koh Tao Koh Nangyuan and Koh Pha-Ngan from Samui

Book now for tomorrow
English guided
Free cancellation
4.5 / 5
(83) • 1K+ booked
Rp 1,009,857
Tours • Ko Samui

ATV Adventure Experience in Koh Samui

Book now for tomorrow
English guided
Free cancellation
4.6 / 5
(41) • 900+ booked
Rp 1,005,370
Outdoor & sports activities • From Ko Samui

Samui Elephant Kingdom Experience

Book now for tomorrow
English guided
Free cancellation
4.4 / 5
(31) • 900+ booked
Rp 511,661
Klook's choice
Klook's choice
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
Rp 1,027,167
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
Rp 807,885
Klook's choice
Klook's choice
Tours • From Ko Samui

Koh Phangan/Koh Samui: Koh Tao & Nang Yuan Day Tour with Snorkel

Book now for tomorrow
English guided
Free cancellation
5.0 / 5
(5) • 100+ booked
Rp 1,287,231
Tours • From Ko Samui

Koh Phangan/Koh Samui: Day Tour to Ang Thong with Snorkel & Lunch

English guided
Free cancellation
Instant confirmation
4.6 / 5
(7) • 100+ booked
Rp 1,427,264
Klook's choice
Klook's choice
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
Rp 1,200,292
Klook's choice
Klook's choice
Tours • Ko Samui

Ko Samui Half-Day Sightseeing Jeep Tour

Book now for tomorrow
English guided
Free cancellation
5.0 / 5
(16) • 200+ booked
Rp 975,619
Massages • Ko Samui

Santiburi Spa at Santiburi Koh Samui Resort

In-app reservation
Free cancellation
Instant confirmation
5.0 / 5
(2)
Rp 1,198,363
Klook's choice
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
Rp 1,000,238

Reviews of Ko Samui activities

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!
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 User
2026-07-06 20:47:01
Fantastic 5.0
boat stopped mid way due to broken thing, the guid was insanley good
Ling *****
2026-10-25 08:22:33
Fantastic 5.0
Wonderful experience in Koh Samui! Thank you to the team for the smooth arrangements for my last-minute request. They were very responsive with a reasonable price and the private trip was very flexible. Although we had limited time to go snorkelling and visit Pig Island, we could communicate with the captain to fit our schedule. Highly recommended to go there with Discover Thailand!✨
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-Nutzer
2026-08-08 13:57:22
Fantastic 5.0
Very well organized and great spots. Only the light breakfast is a bit sparse.
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-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
2026-08-19 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

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
200
150
Avg 100Avg
50
0
80
Jan
Busiest 167
Feb
101
Mar
94
Apr
115
May
162
Jun
78
Jul
83
Aug
67
Sep
Quietest 60
Oct
73
Nov
143
Dec

Bookings to Ko Samui from the Philippines jump most in February, about 67% above a typical month, while October is the quietest, roughly 40% below typical — expect tighter availability and earlier sell-outs in February. Based on Klook historical booking data.

How much do Ko Samui activities cost?

Plan your budget for these activities

Typical range Typical price
Tours
₱1,962 ₱4,044 ₱3,389
Outdoor & sports activities
₱3,152 ₱3,389 ₱3,330
Water activities
₱2,022 ₱2,735 ₱2,022
Massages
₱1,843 ₱2,735 ₱2,200
Cruises
₱2,022 ₱6,184 ₱2,022
₱0 ₱2,000 ₱4,000 ₱6,000

The easiest way into activities is Water activities, typically around PHP 2,022, while Cruises show the widest choice in price, with about PHP 4,163 between lower and upper typical fares. 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
2 daysTypical
6 daysEarly

Travellers typically book activities around 2 days ahead, which means flexible planning works well, though during February’s peak demand you may want to secure must‑do activities sooner. 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 in Ko Samui is led by Tours, followed by Outdoor & sports activities, Water activities, Massages and Cruises, giving you options from organised shore excursions to active and water-based experiences. This spread means travellers can mix guided day trips with self-directed outdoor fun or spa time depending on mood and budget. Demand peaks in February and is quietest in October, so February visits tend to be busiest for the same experiences and October gives the best chance of fewer crowds.

How to choose what to book

A key choice is whether you want organised sightseeing or flexible outdoor time — Tours are the most commonly booked category while Water activities sit at the more affordable end. Tours have a typical price around PHP 3,389 while Water activities show a typical price of PHP 2,022, so Tours suit travellers after curated itineraries and higher-end options while Water activities are the most affordable way in for filling gaps in your schedule.

If you care about variety, Cruises offer the widest range of prices, with an entry-level around PHP 2,022 and upper-end around PHP 6,184, so shopping around there can find either budget or premium choices. Categories like Outdoor & sports activities are narrower in range, with a typical price near PHP 3,330, so price shopping gains you less compared with Cruises.

When travellers from the Philippines book

Most travellers tend to book at the last minute, typically around 2 days ahead, while the earliest planners book roughly 6 days out. That means plan on booking within a week of travel rather than months ahead, and that cushion matters most if you travel in February when demand peaks.

How prices compare across categories

The table below shows how Ko Samui’s main categories compare on price so you can set a budget before choosing.

Category Typical Price Usual Range
Tours PHP 3,389 PHP 1,962 – 4,044
Outdoor & sports activities PHP 3,330 PHP 3,152 – 3,389
Water activities PHP 2,022 PHP 2,022 – 2,735
Massages PHP 2,200 PHP 1,843 – 2,735
Cruises PHP 2,022 PHP 2,022 – 6,184

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 cost?

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

How far ahead should passengers from the Philippines book activities in Koh Samui?

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