The 15 Best Koh Tao Tours

1.Islands Snorkeling Highlights Day Tour & Lunch

★★★★★★★★★★4.7 · 3,742 reviews · 7 hours · from $27Our pick

Spend seven hours circling Koh Tao with Sangthong Tours, stopping at Koh Nangyuan, Mango Bay, Hin Wong, Aow Luek, and Shark Bay. You will hike to a famous viewpoint, snorkel several reefs, eat Thai food onboard, and receive free underwater photos. Hotel pickup, equipment, drinks, and a guide are included.

“Absolutely brilliant day. Really well organised and fantastic value for money. Would definitely recommend.”

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2.Full day snorkeling adventure around Koh Tao

★★★★★★★★★★5.0 · 2,300 reviews · from $24Top rated

Spend about seven hours circling Koh Tao with We Travel Snorkeling Adventures. You’ll visit Shark Bay, Aow Leuk, Hin Wong Bay, Mango, and Koh Nang Yuan, with gear, lunch, fruit, drinks, hotel transfers, and an air-conditioned cabin included. Guides speak English, Chinese, and Thai, and Matthew is one of the crew members praised for his help.

“Good day snorkelling. Was also left plenty time on the island to go see the viewpoint. Lunch was very good too and the staff were friendly.”

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3.Open Water Course – Become certified diver in 3 days

★★★★★★★★★★5.0 · 1,137 reviews · from $358

Train for your open-water scuba certification over three focused days with Koh Tao Scuba Club. Groups are limited to four, giving instructors such as Tom and A plenty of time to guide you through skills, safety, and underwater practice around Koh Tao’s calm, clear sites.

“Tom was an amazing instructor. He was so calm and laid back which made everything feel much less scary while also keeping us educated and safe . I was so nervous but I signed up for an advance course right after I finished .”

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4.Koh Nangyuan & Hidden Bays Snorkeling Tour w/ Lunch

★★★★★★★★★★4.6 · 912 reviews · 7 hours · from $27

Spend seven hours circling Koh Tao and Koh Nang Yuan with an English- or Thai-speaking guide. Snorkel shallow Japanese Gardens, Mango Bay, Hin Wong, Ao Leuk, and Shark Bay, with Thai lunch, fruit, drinks, gear, hotel transfers, and free GoPro photos included.

“Amazing value for money! Absolutely loved this tour. The guides were fantastic and super knowledgeable. They really went out of their way to ensure we had an amazing day out. Small group which was perfect for my daughter and I because we were a little nervous to begin with. Cannot recommend this tour enough.”

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5.Tao-Nangyuan Snorkeling Day Trip with Meals & Sunset

★★★★★★★★★★4.6 · 711 reviews · 8h 30m · from $62

Join Royal Mariblue for a full-day boat trip from Koh Tao to Koh Nang Yuan and four bays around the island. Expect guided snorkeling, turtles and reef sharks when conditions allow, a fresh mouthpiece, underwater photos, buffet lunch, kayaks, paddleboards, and a sunset BBQ. Groups usually stay near 20 people.

“A must do if you’re looking for a snorkelling trip!!! Compared to other snorkelling tours, this one is more intimate, not overpacked at all! We circled the island and saw so many fish, baby sharks and even 3 large turtles. The lunch buffet was so tasty with some refreshing fruit as a snack to keep you replenished and in the evening some lovely chicken bbq skewers. Our Guide was amazing, so fun and did everything to get amazing photos and videos for you to remember! Credit to the chef and captain also, we stumbled on some windier and wet weather at the end and they were amazing! I would 100%…”

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6.Snorkeling Trip to Nang Yuan Island & Hidden Bays

★★★★★★★★★★4.8 · 646 reviews · 7 hours · from $24

Spend seven hours with We Travel Snorkeling & Tour, visiting Nang Yuan, Japanese Garden, Mango Bay, Ao Hin Wong, Ao Leuk, and Shark Bay. English and Thai-speaking guides, including M, Mr K, Matthew, and Banana, help you find fish and turtles while lunch, gear, hotel transfers, and a boat slide are included.

“The guides were so friendly and made the whole experience really enjoyable. Great food both Thai options and cold sandwiches. Great day overall!”

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7.Koh Nangyuan and the Hidden Bays Trip by the Oxygen

★★★★★★★★★★4.7 · 305 reviews · 6 - 7 hours · from $24

Spend six to seven hours aboard the Oxygen visiting Koh Nangyuan, Japanese Garden, Mango Bay, Hin Wong, Ao Leuk, and Shark Bay. English and Thai guides lead the snorkeling, provide equipment and lunch, and help less confident swimmers. Guides may also take free underwater photos.

“This was a fantastic day out! So well organised and the boat was not overcrowded. Crew were great fun but also had a keen eye on safety - everything was very smooth and we had a good amount of time at each stop. Koh Nangyuan is beautiful and well worth the visit - we also climbed to the viewpoint which was fantastic. Food on board the boat was excellent too and drinks very reasonable. Amazing trip.”

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8.Advanced Adventurer – 2 days ( Advanced Open Water)

★★★★★★★★★★5.0 · 206 reviews · from $326

Build your SSI Advanced Adventurer certification in Koh Tao with five underwater sessions, including deep-water training to 30 meters, navigation, buoyancy, wreck, and night work. Koh Tao Scuba Club runs groups of up to four, with instructors such as Safari, Oni, Ae, and Rosita.

“Onilio was our instructor. Confident, knowledgeable, and putting safety first, he made the lessons fun, and allowed us to enjoy the dives, while still teaching us very useful skills. 10000/10 would recommend”

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9.Premium Snorkel Tour to Koh Nangyuan Bays by Oxygen

★★★★★★★★★★4.8 · 146 reviews · 6 hours · from $48

Spend six hours with Oxygen Tour on a premium boat capped at 25 people. Snorkel around Koh Tao, Koh Nangyuan, Aow Leuk, and Shark Bay, climb to Nangyuan’s viewpoint, and look for turtles, reef sharks, and coral with guides such as Spy, Win, Ben, and Night.

“The Weather wasn't really in our favor but the Tour Guides David and Night & the whole Crew made the Best out of it. They showed us Turtles in the Water and explained alot about the Fishes we saw. They also made sure that everyone felt okay at all times. Amazing Trip, absolutely worth the Money, truly worth it to experience the Marine Life and beautiful Scenery. Would do it again!!!”

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10.Late Riser Snorkeling Tour with Lunch and Photos

★★★★★★★★★★4.6 · 135 reviews · 6 hours · from $28

Join an English- or Thai-speaking guide for a six-hour Koh Tao boat trip with hotel pickup, Koh Nangyuan, four snorkel stops, Thai lunch, and free underwater photos. You’ll see coral, colorful fish, and, with luck, turtles or blacktip reef sharks without the early start of a full-day tour.

“Sina our tour guide was great and taught us all about their traditional martial arts. He made sure we were topped up with beers as well free of charge and overall was very hospitable. Highly recommend for anyone looking to discover more about Cambodian culture and watch a great night of fighting!”

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11.Snorkeling and Sunset Tour

★★★★★★★★★★4.8 · 118 reviews · 2h 30m · from $23

Join a small group of up to 10 at Koh Tao Diving Academy for 2.5 hours on the water, visiting two snorkel sites with an English, Spanish, or Thai guide. Expect turtles, reef fish, possible blacktip sharks, refreshments, gear, and a sunset boat ride back.

“Great activity, instructor is super nice and really helpful and directs you where the best places are to see the sharks, turtles etc!”

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12.Snorkeling Tour with meals and BBQs – Cocktail – Sunset⭐⭐⭐⭐⭐

★★★★★★★★★★5.0 · 105 reviews · 7 hours · from $54

Spend seven hours around Koh Tao with guide Chart and his family-run Coco Tip Adventures crew. With a maximum of 20 people, you can snorkel at quieter bays, look for turtles and reef sharks, enjoy homemade Thai food, fresh coconut, a BBQ, and a sunset cocktail.

“We were so glad to have chosen to go with Chart on his smaller boat even though it cost a bit more - well worth it to have a more chilled experience, no crowd or rushing. We had an amazing day”

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13.Become certified diver in 3 days – PADI Open Water Diver course on Koh Tao

★★★★★★★★★★5.0 · 104 reviews · from $375

Learn scuba skills at Scuba Birds PADI Dive Center on Koh Tao, then complete four open-water sessions near Nang Yuan Island. The three-day PADI course includes equipment, classroom work, a final exam, certification, and a log book. Instructor Dominik Maier has been praised for calm, clear teaching.

“What a unique experience! My instructor was Dominik Maier who was an equally hilarious yet stern when needed teacher. I was very nervous at certain points as I have never scuba dived before, and he was able to calm both myself anRead more”

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14.First Light Snorkel Adventure with Oxygen Tours

★★★★★★★★★★4.7 · 38 reviews · 4 hours · from $36

Start with hotel pickup on Koh Tao and meet the Oxygen crew for four hours around Tao Thong Bay, Freedom Bay, Ao Leuk, and Shark Bay. Guide Finn has been especially helpful with nervous swimmers and seasickness. Snorkel gear, breakfast, fruit, towels, and Thai lunch are included, but confirm whether fins are available.

“Les plus: guide expérimenté, connaît bien les lieux, tres gentil. Une personne avait le mal de mer et a reçu un traitement a bord rapidement. Le capitaine connaît également bien les lieux. Beaucoup d'espèces de poissons dont des poissons ange et des poissons peroquets, quelques tortues, flore abondante mais terne. Les moins: les palmes ne sont pas incluses dans le prix. Il n'y a pas d'étui de fourni pour les cellulaires. Cest mieux dapporter une bouteille d'eau personnelle. Sensation de picotement lorsquon est dans l'eau mais qui disparait lorsqu'on se rince a leau fraiche. Repas: riz blanc, poulet bouilli, 3 morceaux de légumes, aucune épice. La mer étant agitée nous…”

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15.Yoga Class In Paradise – All Levels Welcome!

★★★★★★★★★★4.8 · 30 reviews · 1 hour · from $11Best value

Join a one-hour English-language yoga class near Koh Tao’s 7/11 and currency exchange. Franny and the studio team offer Vinyasa, Hatha Flow, and Yin for beginners and regulars, with mats, props, and water supplied. Arrive early, wear comfortable clothes, and bring a personal towel.

“Thank you for joining us on the mat 💜Team OS”

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