Snorkel Tour to Koh Nangyuan and the hidden bays of Koh Tao onboard the Oxygen

Thai Holiday Guide

diving snorkeling Free cancellation

4.8 (198 reviews) Top rated

Reviewed Jul 2026

Highlights

Thai lunch at a local restaurant
English-speaking licensed guide
7-hour tour at a steady pace
Departs from Koh Tao

A 7-hour snorkel trip out of Koh Tao aboard the Oxygen, covering the Koh Nangyuan viewpoint plus four snorkel stops around Koh Tao’s east coast, from $34 with a Thai lunch and life jackets included.

Hotel pickup on Koh Tao runs 9:00 to 9:30 AM, then check-in with the crew at Mae Haad Pier before the 30-minute cruise to Koh Nangyuan. The 15-minute hike climbs to the island’s highest viewpoint over the three islets, followed by free time to swim and snorkel at the Japanese Reef Garden. Lunch is a Thai-style box eaten on board while the boat heads back toward Koh Tao, then the afternoon runs through four snorkel stops on the harder-to-reach east coast — Mango or Lighthouse Bay, Hin Wong Bay, Ao Leuk and Shark Bay — each getting 40 minutes to an hour before the boat returns to Mae Haad Pier by 5 PM.

Hotel transfer, a life jacket, basic accident insurance, and drinking water, coffee, tea and fresh fruit are included; Koh Nangyuan’s entrance fee and tips are not, and pickup doesn’t cover Mango Bay or Lighthouse Beach. The day moves at a moderate pace across five separate snorkel and swim stops, so expect to be in and out of the water most of the day.

Good for confident swimmers who want more water time than a single-site snorkel trip gives you — five stops in one day is a lot of getting in and out of a boat. If you get seasick easily or want a slower day, a shorter single-island trip suits better.

Insider Tip: Koh Nangyuan charges its own entrance fee on top of the tour price — bring cash, since it’s not built into the $34 booking cost.

Itinerary

1

Choose between a morning departure for early risers who don't want to miss the beautiful morning light, or an afternoon departure for people who prefer to sleep late but still want to explore Koh Nangyuan and Koh Tao - remember that the afternoon trip is usually less crowded. Meet the friendly boat crew of the Oxygen at Mae Haad Pier and get useful information about the trip and the islands. With all the exhaustion of the sightseeing, sunbathing, and snorkeling, you’ll need to have lunch to refuel while cruising to Koh Tao onboard the Oxygen. Some of Koh Tao’s most beautiful beaches dot the East coasts which are difficult to reach by road. That makes these beaches the perfect destinations for this boat trip. You will make several sorkel stops at Mango/Lighthouse Bay, Hin Wong Bay with colorful fishes and in Ao Leuk which is famous for its crystal clear water. The last snorkel adventure will be at Shark Island named for it’s supposed fin-like shape.

2

First cruise to the stunning Nangyuan Island which takes just a few minutes onboard the big boat from Koh Tao. Take the 15-minute hike up to the viewpoint of the three islands’ highest peak. The view from the top, a vista that graces postcards across the country, is one of the most beautiful you will have ever laid eyes on. • 09:00 - 09:30: Hotel pickup on Koh Tao • 09:30 - 10:00: Meet the boat crews & check in at the pier • 10:00 - 10:30: Depart from Mae Haad Pier to Nangyuan Island • 10:30 - 11:30: Climb up to the viewpoint, relax & swim at Nangyuan Island

3

There’s really no need for exaggeration — Koh Nangyuan simply is one of the best snorkeling spots in Thailand. The shallow Japanese Reef Garden located in the east of the island are lined with intricate soft and hard corals as well as schools of colorful parrotfish and shy angelfish. • 11:30 - 12:30: Free time for snorkeling at Japanese Reef Garden • 12:30 - 13:00: Enjoy Thai lunch box on board while cruising to Koh Tao

4

• 13:00 - 14:00: Snorkel at Mango Bay or Lighthouse Bay • 14:00 - 15:00: Snorkel at Hin Wong Bay with colorful fishes • 15:00 - 15:40: Swim in crystal clear water at Ao Leuk • 15:40 - 16:30: Last snorkel stop at Shark Bay

5

• 16:30 - 17:00: Head back to Mae Haad Pier & transfer to the hotel

6

Itinerary: - 09:00 - 09:30: Hotel pickup on Koh Tao - 09:30 - 10:00: Meet the boat crews & check in at the pier - 10:00 - 10:30: Depart from Mae Haad Pier to Nangyuan Island - 10:30 - 11:30: Climb up to the viewpoint, relax & swim at Nangyuan Island - 11:30 - 12:30: Free time for snorkeling at Japanese Reef Garden - 12:30 - 13:00: Enjoy Thai lunch box on board while cruising to Koh Tao - 13:00 - 14:00: Snorkel at Mango Bay or Lighthouse Bay - 14:00 - 15:00: Snorkel at Hin Wong Bay with colorful fishes - 15:00 - 15:40: Swim in crystal clear water at Ao Leuk - 15:40 - 16:30: Last snorkel stop at Shark Bay - 16:30 - 17:00: Head back to Mae Haad Pier & transfer back to the hotel

7

-