Full-Day Koh Tao and Koh Nangyuan Islands Tour: Snorkeling in Pristine Marine Life Hotspots

Discover the top snorkeling destinations around Koh Tao with a day trip to Koh Nangyuan, Mango Bay, Ao Hin Wong, Aow Leuk, and Shark Bay on a converted fishing boat. Stroll along the famous beach connecting the trio of islands at Nangyuan and snorkel in the stunning turquoise waters teeming with marine life.

Duration: 7 hours
Cancellation: 24 hours
Highlights
  • Mae Haad Pier - Start the trip with a pickup service from your hotel lobby and get driven to Mae Haad Pier where you will meet the crew of Sangthong Tours.
  • Koh Tao - After a quick health check, board the modified fishing cutter and chug to the first snorkel spot at Koh Nangyuan off Koh Tao’s northwest coast.
  • Nang Yuan Island - Walk on…
What's Included
  • Complimentary accident insurance for peace of mind
  • Free underwater photos to capture your memories
  • Quality snorkeling equipment and life jacket included
  • Guidance by a professional English-speaking guide
  • Enjoy a Thai-style lunch box during the tour
  • Refreshments provided: water, coffee, tea, and fresh fruits
  • Convenient hotel round-trip transfer (Mango Bay & Lighthouse Beach not included)
What's Not Included
  • Hotel pickup from Mango Bay & Lighthouse Beach
  • Entrance fees
  • Entrance fees
  • Tips
Additional Information
  • Adult entrance fee applies to children with a height of over 120cm
  • The tour program is subject to change due to weather & sea conditions
Location
Mae Haad Pier
Meet at Koh Tao Sangthong Tours at Mae Haad Pier on Koh Tao at least 30 minutes before scheduled departure.
Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

Customer Ratings
4.6
(64 Ratings)
5 stars
4 stars
3 stars
2 stars
1 star
Noeliaft6512gb
Aug 5, 2025
Amazing! - Amazing! Repetitive ES see how all the commentators EN always described the tour as "it has been the best tour I have done in Thailand" , because in this case I agree 💯 %! It's DE ten! The horny monitors, making jokes and with a great sense of humor all day, have taught us the best places to find fish, turtles and baby sharks! NO photos have been taken under the sea, the food has been excellent and of course, the views stunning! Thank POR an amazing day! Great experience🤙 Keep it up!
Review provided by Tripadvisor
Xabiera680
Aug 5, 2025
DE snorkeling day - The staff DE 10. Very nice, attentive and fun. We had a great time and the tour is great. The best thing to know the island EN one day
Review provided by Tripadvisor
Luc_b
Jul 28, 2025
A very nice discovery! - Nothing wrong was great!! As a small price can be very good on the quality DE the service. Food, crew and guides at the top
Review provided by Viator
Alepp0p
Jul 25, 2025
- Nice snorkeling trip, good food on DE boat, friendly staff. Staff take DE time to visit beautiful places where you can snorkel.
Review provided by Tripadvisor
O7786swpaulinea
Jul 2, 2025
Underwater Wonders & Coastal Thrills - An unforgettable adventure—each of the five sites was stunning. Swimming alongside sharks and turtles felt surreal, and exploring the aquarium and all three bays in one go was nothing short of magical.
Review provided by Tripadvisor
Marcinms8829al
Jun 30, 2025
unforgettable moments - the whole crew and the trip were amazing Music, food, delicious, I highly recommend, great photos, the guys took great care to make sure everyone had a souvenir
Review provided by Tripadvisor
Sunshine07179330164
Jun 4, 2025
Best in Koh Tao, we will back - The views and sea were amazing, we were also happy to meet such a lovely guide, he helped me to celebrate my husbands' birthday. Other staff is also cool and consider all the guests safe.
Review provided by Tripadvisor
Pierre_f
Jul 17, 2025
Beautiful boat day... - Beautiful day boat to go around the island and visit its beautiful beaches while snorkeling
Review provided by Viator
Cfor2020
Jul 9, 2025
Really friendly staff - Nice places visited. Staff really nice. Food ok. Really missed a shower on deck, I saw many other boats have that. Also really messy and not organised when transfer back to hotel.
Review provided by Tripadvisor
Lauraca3100cl
Aug 12, 2025
Bad - Initially communication was good with the tour operator but it all fell apart on the day- we had a call to wait at our reception the driver will be with us in a minute- 15 mins later they arrived. We found that there were so many tourists on nang yuan island that it was actually unpleasant- 40 min queue to get to the ‘viewpoint’. The rest of the stops you could get to be hiring a scooter and then you might actually be able to enjoy the stops and see something. The quality of the snorkels was poor- all four of our group had issues with water in the masks and snorkel leaking. Food was good for lunch and staff were friendly. I don’t know why but after the last stop we didn’t return to port as planned we had to get a long tail boat to shore and taxis from there- meaning we were an hour later than planned, no explanation from the team why this had occurred and the organisation of people onto boat/taxi was pretty chaotic. Overall not really worth it, wish I’d got a scooter and a snorkel instead
Review provided by Tripadvisor
From $26
up to 15 guests
1 - Adult
Cancellation: Free cancellation up to 24 hours before the start of your experience (local time).