The 11 Best Snorkeling Boat Trips in Thailand

1.Koh Samui: Pig Island & Koh Tan Snorkeling by Speed boat

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

Join Happy Samui for a short speedboat trip from southern Koh Samui to Koh Madsum and Koh Tan. Meet beach-roaming pigs, swim, snorkel, and enjoy a Thai buffet lunch. Guides such as Sun, Joe, and Cola are known for friendly help and taking photos. Hotel transfers, gear, water, fruit, and insurance are included.

“Amazing, the guide was really friendly and he helped my friend look for her lost phone ❤️ extra time on the pig island was also a nice touch”

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2.Krabi 4 Island Sunset Snorkeling Cruise + Bioluminescent Swim

★★★★★★★★★★5.0 · 1,861 reviews · from $130Top rated

Spend six to seven hours aboard a century-old Thai wooden junk with Michael and his crew, stopping near Koh Ya Wa Sam, Chicken Island, Poda Island, and Phra Nang Cave Beach. Snorkel, kayak, paddleboard, eat a Thai buffet, then swim after dark among glowing plankton. Transfers run from Ao Nang and Railay.

“Can't say enough good things about this outing and their people – friendly, relaxed vibes, "pirate" boat with stops at beautiful islands to snorkel, swim, and paddle board. Drinks and a delicious dinner. STUNNING sunset – then swimming in bioluminesence. A glorious end to our stay in Thailand!”

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3.From Phi Phi: Half-Day Longtail Boat Tour with Snorkeling

★★★★★★★★★★4.2 · 1,733 reviews · 4 hours · from $24

Join a small-group longtail boat trip from Koh Phi Phi for Monkey Beach, Viking Cave, Pileh Lagoon, Loh Samah Bay, and Maya Bay. You’ll swim and snorkel with provided gear, enjoy fruit and water, and may catch sunset and glowing plankton on the 2 PM departure. Bring 400 THB cash for the national park fee.

“Really good value for money, the tour was amazing and we saw everything we wanted to! Definitely got a lot for the money we paid.”

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

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

Spend a half day by speedboat from Koh Samui, snorkeling around Koh Tan before relaxing on Koh Madsum, better known as Pig Island. You get hotel pickup, a guide, equipment, kayaking, soft drinks, and a Thai meal. Expect a friendly, middle-sized group, but allow extra time for minibus pickups and note that the 50 baht island fee is separate.

“Pig island was very nice and the food provided was also very good.”

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5.Phi Phi: Private Longtail Boat to Maya Bay with Snorkeling

★★★★★★★★★★4.7 · 1,632 reviews · 3 - 7 hours · from $112 per boat, seats 2

Take a private longtail boat from Koh Phi Phi with a local captain to Maya Bay, Pileh Lagoon, Monkey Bay, Viking Cave, and selected snorkeling spots. Morning departures beat the crowds. Afternoon options add sunset and bioluminescent plankton, while the 7-hour trip can include Bamboo Island.

“What a lovely way to spend a day. (Or 6 hours). Our captain was caring and helpful throughout our day. We started in the sun with a refreshing trip across the waves to our first snorkelling spot. Drinking water was plentiful and offered in each return to the boat. The boat was comfortable with cushions and plenty of room to bring drinks ourselves and have them stored in a cooler. The destinations were beautiful. A mix of amazing beaches and quiet lagoons where we saw baby and slightly larger blacktip reef sharks, monkeys (many) and fish of many types and blue herons. Snorkelling was offered at most stops and at…”

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6.Phi Phi: 7 Island Longtail Boat Snorkeling Tour with Sunset

★★★★★★★★★★4.2 · 1,076 reviews · 8 hours · from $38

Join a maximum-20-person longtail boat tour from Koh Phi Phi at 10:30 AM. You will visit Monkey Beach, Viking Cave, Pileh Lagoon, Maya Bay, Shark Point, and Bamboo Island, with lunch, fruit, water, snorkeling gear, and underwater GoPro photos included. Guides such as Dan and Vang have led some departures.

“It was a really well run activity. Everything went smoothly. Views and beaches were stunning. Food was really nice as well, a simple chicken fried rice but it hit the spot. I was lucky enough to see a black tip reef shark because the boat guide swam in the water with me and pointed where it could be. I think their name was Vang. It was on 7/4/25. Overall, highly recommend but you might get cheaper at the stalls than online.”

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7.7 Island Tour by Luxury Longtail Boat with Snorkeling

★★★★★★★★★★4.6 · 1,063 reviews · 5 hours · from $37

Cruise Krabi’s limestone coast on a comfortable longtail boat with guide Sofia or Sophia, stopping to snorkel and relax on Poda Island. You’ll pass Railay, Tup, Chicken, Koh Mor, Puya Bay, and Koh Tang Ming, with drinks, fruit, gear, and an onboard toilet included. Morning trips are calmer; sunset trips add BBQ chicken and corn.

“It was great, special mention to Sophia for her kind gestures, the whole staff is great, the boat will make you feel the luxary and it will surely be a memorable lifetime experience”

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8.Koh Chang: 3 or 4 Islands Snorkel & Beach Tour by Big Boat

★★★★★★★★★★4.3 · 723 reviews · 330 minutes - 9 hours · from $28

Choose a 3-island half-day trip to Koh Wai, Koh Lao Ya Nai, and Koh Klum, or spend longer at Koh Rang National Park and three nearby islets. A guide leads each swim, lunch is cooked onboard, and a photographer takes boat and underwater pictures. Hotel pickup is available on Koh Chang’s west coast.

“My experience with the company was completely worth it. The 4 islands are very pretty and I enjoyed the whole experience. The food was great even though with my gluten limitations plus vegetarianism they figured out a way for me. The crew was very friendly. I really recommend this activity for everyone!!”

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9.Koh Lipe: Longtail Boat Snorkeling Trip Program A

★★★★★★★★★★4.8 · 552 reviews · 6 hours · from $19Best value

Spend six hours aboard a traditional longtail boat visiting Jabung, Hin Ngam, Koh Yang, Rawi, and Adang. You’ll snorkel over colorful coral, swim with tropical fish, stop for lunch on a white beach, and receive free underwater photos and videos from the crew. English and Thai guidance is available.

“Great snorkel trip, highly recommend. Can’t fault it”

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10.Koh Samui: Private Longtail Boat to Pig Island with Snorkel

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

You’ll ride a private longtail boat from Thong Krut Pier with a local Thai captain, snorkel near Koh Tan when sea conditions allow, then spend up to 2.5 hours on Koh Madsum, known as Pig Island. The captain speaks basic English, and you can shape the timing around swimming, photos, and time with the pigs.

“Such an amazing tour. Finding the meeting point was so easy and our tour guide was amazing. We had the best day snorkelling, swimming and seeing the pigs. Having the boat to yourself is amazing and such good value for your money. Can take as many photos as you want on the long tail boat! We had an amazing day, such professional and fun staff!”

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11.Ko Lanta: 4 Islands Snorkeling Tour by Longtail Boat

★★★★★★★★★★4.1 · 297 reviews · 6 hours · from $31

Spend a lively day by longtail boat from Koh Lanta, stopping at Ko Chueak, Ko Muk’s Emerald Cave, Ko Ma, and Koh Ngai. You’ll snorkel, swim through a dark 80-meter cave, eat a beach buffet, and receive gear, drinks, fruit, hotel transfers, and an English or Thai-speaking guide. Expect splashes, shared boats, and changing sea conditions.

“A brilliant day for such a good price. We stopped at Koh Chueak first where we were given snorkels and one of the longboat team fed the fish, so it was teaming with them. Next stop was Koh Mook where it was a swim to the cave, then a good 80m in the dark through the cave (top tip is to swim close to the guide who has the flashlight), which opened into the most beautiful beach area. The guide carried all our phones in his wet bag so we were able to get stunning photos. Next stop was Koh Waen for more snorkeling. Then the final stop was Koh…”

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