Top 15 Koh Samui Snorkeling Tours

1.Pig Island & Koh Tan Snorkeling by Speed boat

★★★★★★★★★★4.5 · 4,149 reviews · 4 hours · from $52Our pick

Take an air-conditioned minivan to a private pier, then reach Koh Madsum in about 10 minutes by speedboat. Meet beach-roaming pigs, snorkel at Koh Tan, and eat a Thai buffet with guides such as Sun, Joe, Cola, and Alex. The tour costs $52, includes hotel transfers and gear, but the full outing can take longer than four hours.

“We liked everything, easy pick up, the guides were exceptional, they went above and beyond, food was great, perfect amount of time for each activity.”

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2.Ko Samui: Pig Island Snorkeling and Koh Tan Speedboat Tour

★★★★★★★★★★4.2 · 1,673 reviews · 4h 30m · from $51Best value

Take a morning or afternoon speedboat from Koh Samui to Koh Tan and Koh Madsum, better known as Pig Island. You get hotel pickup, snorkeling gear, kayaking, drinks, lunch or dinner, and an English-speaking guide. Expect roughly an hour at Koh Tan and up to two and a half hours with the pigs, beach, and sea at Koh Madsum.

“The guides were good, food was good and the views were beautiful. There isn’t much snorkeling to do on pig island but the pigs are really cute and friendly.”

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3.Koh Tao and Nangyuan Snorkeling Tour with Lunch

★★★★★★★★★★4.5 · 1,223 reviews · 7h 30m · from $73

Travel by speedboat from Koh Samui to Koh Tao and Koh Nangyuan for snorkeling, swimming, a Thai buffet, and a viewpoint hike. Guides such as Thai and Big keep the day moving, while the crew provides gear, drinks, fruit, and photos. Expect a long, sometimes rough ride, a busy Nangyuan beach, and excellent sea life.

“Very nice day-trip, fully recommended if you are looking for best snorkelling spots in the area (we saw a sea-turtle). Koh Nangyuan is amazing island: we spent 1hour there in the afternoon in crystal water and movie-like sand beach. I’d love to stay even more. Speedboat is ok, not too crowded. It’s 1.5hr one-way and honestly I do not see anything else for a day trip. Funny crew, they will take care of your needs.”

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4.Day Tour to Ang Thong with Kayak, Snorkel & Lunch

★★★★★★★★★★4.7 · 856 reviews · 8h 30m · from $76

You’ll spend a full day touring Ang Thong National Marine Park from Koh Samui by speedboat. Expect snorkeling, a beach buffet at Koh Maekok, Emerald Lake, kayaking, and a steep climb to views of 42 islands. Guides such as Jef, Jeff, Thon, Arthur, Tom, and Ken have been praised for keeping the day safe, friendly, and well organized.

“Great day! Well organised travel, and very accommodating guides. Amazing islands and views. The walk up to the view point was hard especially in the heat but definitely worth it, would recommend wearing trainers. Bottled water offered all day and you can buy drinks and snacks on the islands (cash only).”

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5.Ang Thong: Marine Park Full-Day Kayaking & Snorkeling Tour

★★★★★★★★★★4.6 · 768 reviews · from $68

Travel by boat from Koh Samui to Ang Thong Marine Park with an English, German, or Thai-speaking guide. Kayak through caves and tunnels, visit the Emerald Lake, snorkel, swim, and choose between hiking, kayaking, or beach time at Koh Wua Talap. Breakfast, buffet lunch, drinks, gear, transfers, and park fees are included.

“loved the whole experience. collected on time the guides were great. we all love seeing the beautiful island good explanations about it all kayaking, snorkeling swimming in sea all had magical time highly recommended”

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6.Koh Pha Ngan: Day Tour Ang Thong with Kayak, Snorkel & Lunch

★★★★★★★★★★4.5 · 729 reviews · 8 hours · from $82

Spend eight active hours exploring Ang Thong National Marine Park from Koh Phangan. You will snorkel, hike to Emerald Lake, eat a beach buffet, climb for views of 42 islands, and kayak beside limestone cliffs. Guides such as David, Diamond, and Sky are praised for keeping the day friendly, clear, and well organized.

“This tour was the best tour we have done in our two week Thailand trip! The guide was really enthusiastic and the rest of the crew were also very helpful and friendly. Everything was well arranged and very clear. The islands were beautiful and we had perfectly enough time at all the stops. Definitely recommend !!”

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7.Angthong Marine Park Snorkeling Tour by Speedboat

★★★★★★★★★★4.3 · 658 reviews · 7h 30m · from $73

Spend about 7.5 hours exploring Angthong Marine Park from Koh Samui by speedboat. You’ll snorkel at Koh Wao, kayak or hike on Koh Wua Talap, eat a Thai buffet on Phaluai Island, and climb to the Emerald Lagoon viewpoint. Guides such as Thai and Sunshine are known for friendly service and taking photos.

“Friendly and fun staff. Breakfast was very basic (toast and juice), but lunch was delicious, it was on a small island that was in need of some TLC. Snorkelling was fantastic but was only available at one stop. All other stops had amazing hiking routes and some nice beach activities like canoeing. You’ll certainly lose a few kgs hiking up their steep trails. All in all, it was a great trip and comes highly recommended. If I was to make a recommendation, it would be to add more snorkelling locations to the itinerary.”

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8.Pig Island Tour by Speedboat with Snorkeling

★★★★★★★★★★4.5 · 530 reviews · from $58

Speed across the sea from Koh Samui to Koh Madsum, where pigs and piglets roam a white-sand beach. Then snorkel near Koh Tan and eat a buffet lunch by the water. Guides such as Superman, Joe, Coca-Cola, and Alex are known for friendly help and taking photos. Bring a towel, sunscreen, and patience for the long transfer to the pier.

“The best activity we did in Koh Samui. A wonderful day out. Very nice staff who were friendly and very helpful. Such a pity to see the volume of rubbish left by tourists - particularly on Pig Island. It’s shocking how careless visitors are. But the trip was great nonetheless thanks to the staff.”

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9.Jetski Safari, Snorkeling to Pig & Virgin Islands

★★★★★★★★★★4.6 · 364 reviews · 2h 30m · from $220 per boat (seats 2)

Ride a stable two-person Seadoo from Koh Samui to Koh Tan and Pig Island with an English or Thai-speaking guide. You’ll get a safety briefing, snorkeling gear, hotel transfers, waterproof storage, and time to swim and meet the pigs. The $220 price covers one jet ski for up to two people, while Pig Island charges 50 THB per person.

“This has been hands down the BEST EXPERIENCE and ACTIVITY EVER!!! Me and my partner got a jet ski each and we had so so much fun, everything was literally perfect, the transportation was great and guides were really nice and helpful! The price is really good, you definitely must give this a go!!”

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10.Private Longtail Boat to Pig Island with Snorkel

★★★★★★★★★★4.5 · 330 reviews · from $93 per boat (seats 2)

Meet your local Thai captain near Thong Krut Pier and take a private longtail boat to Koh Tan and Koh Madsum, known as Pig Island. Snorkel if sea conditions allow, then enjoy up to 2.5 hours with the pigs on a white-sand beach. Bring cash for the 50 THB island fee, food, drinks, and pig food.

“We had the best day we arrived and were met by a friendly host then our boat left on time and took us to pig island! We had a private tour which was amazing - our boat driver was so lovely! We spent as much time as we liked with the pigs feeding them and spending time with them. We then went snorkling and our boat driver took pictures of us. We spend as long as wanted here and then he drove us back! A great day!”

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11.Pink Dolphin, Pig Island, and Snorkeling Day Trip

★★★★★★★★★★4.0 · 249 reviews · 7 hours · from $83

This seven-hour Koh Samui trip combines dolphin watching near Khanom, a Thai lunch on the beach, snorkeling at Koh Tan, and time with pigs on Koh Madsum. Guides such as Phillips have earned warm praise for their care and energy. Expect a fast, active day, with dolphin sightings and water clarity dependent on conditions.

“Great day hoping in between the islands and ending the day at pig island which was a lot of fun. Lunch was served on the beach and was great food. Your guides were friendly and take a lot of pictures for you! Would highly recommend.”

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12.Ko Samui: Unique Ko Tao & Ko Nang Yuan Snorkeling Day Trip

★★★★★★★★★★4.2 · 83 reviews · 8h 30m · from $78

Join an English or Thai speaking guide for an 8.5-hour speedboat trip from Koh Samui to Koh Tao and Koh Nang Yuan. Snorkel at a weather-selected bay, eat a Thai buffet lunch, visit Japanese Garden, and climb to a viewpoint above the famous sandbar. Hotel pickup, equipment, and insurance are included.

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13.Koh Tao & Nang Yuan Day Tour with Snorkel, Lunch

★★★★★★★★★★4.5 · 76 reviews · from $69

Travel by speedboat from Koh Samui to Koh Tao and Nang Yuan Island with an English-speaking guide, hotel pickup, breakfast, snorkeling gear, lunch, and insurance. Snorkel above coral reefs, climb Nang Yuan’s steep viewpoint, swim from white-sand beaches, and return by minibus. The full day includes long boat rides and can be bumpy in rough seas.

“Gut organisierte Tour und nette Guides - schöne Inseln”

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14.Mr.Ung’s Private Fishing/Boat Trip/Snorkeling/BBQ

★★★★★★★★★★4.0 · 61 reviews · 6h 30m · from $418 per boat (seats 2)

Spend 6.5 hours on a traditional wooden boat from Koh Samui, fishing around Koh Taen and Koh Mudsoom, snorkeling, and eating a fish BBQ. Your English-speaking guide chooses sites based on sea conditions. Hotel pickup, gear, water, insurance, and lunch are included.

“The tour guide picked us up at the hotel early. There were 5 participants on the trip so it wasn"t crowded at all. We had a good couple hours of clear skies to get some fishing in before it started to rain and become windy. It was my first time fishing but I caught three! We had fried rice and fish bbq for lunch. Since it started to rain we voted to forego the snorkeling in favor of more fishing, but eventually we had to return earlier than scheduled. Tour guide operator dropped us back off at the hotel. Overall good experience, despite the weather.”

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15.Snorkeling and Kayaking by Speedboat

★★★★★★★★★★3.7 · 32 reviews · 6 hours · from $59

You’ll ride a speedboat from Bang Kao pier to Koh Tan for reef snorkeling, then continue to Koh Madsum, often called Pig Island, for beach time, lunch, swimming, and sea kayaking. Hotel pickup, equipment, life jackets, a guide, insurance, and return transport are included. Weather can change the plan, so bring a dry change of clothes.

“A brilliant experience seeing the islands off Ko Samui. Really great fun snorkeling and seeing Pig Island. Feeding the pigs on the beach was a really memorable experience. The guide spoke great English and ran the whole trip really well, and hotel pickup was on time and easy. Food provided on Pig Island was also great and catered for everyone. It might have been nice to have a bit longer snorkeling, but apart from that small thing, this is a great day out for anyone staying in Ko Samui.”

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