Koh Tao/Things to do/ water

A Koh Tao and Nang Yuan snorkelling trip

Researched PickBook ahead10.0 out of 10, best operator

Half a day round the island by boat from Mae Haad pier, with Koh Nang Yuan's viewpoint, a reef stop and the quieter bays on the east coast.

A Koh Tao and Nang Yuan snorkelling trip
Mango Bay, one of the trip's stops on the north of Koh Tao. Photo by Franz Winter, CC BY-SA 3.0, via Wikimedia Commons

What we checked, 21 September 2026

Read on its own Klook page on 18 September 2026: 4.8 out of 5 from 82 reviews, which clears our bar of 9.0 out of 10 and 50 reviews. It was the only trip departing Koh Tao itself on Klook that did; the others there either leave from Koh Samui or Koh Phangan or carry too few reviews. No Koh Tao dive course on Klook had enough reviews to clear the bar. We have not done this trip. A second operator was added on 21 September 2026: the same trip run on the boat Oxygen, read on its own Viator product page at 5.0 out of 5 from 210 reviews, where Viator names the supplier as Trip Store Krabi. Viator's search page showed 4.8 for it the same day, and where the two disagree we take the product page.

Verified via. The operator below was read off its own Klook listing page on 18 September 2026, which states that the trip meets its crew at Mae Haad Pier. Koh Nang Yuan's own site publishes its 250 baht entrance fee for day visitors.

Who runs it

Separate companies, listed separately. We do not average scores across operators, because the average would describe a trip you cannot book.

OperatorScoreReviewsFrom
Koh Tao and Koh Nangyuan Half-Day Guided Snorkeling Experienceklook4.8/5 (9.6/10)82varies by package
Snorkel tour to Koh Nangyuan and the hidden bays of Koh Tao onboard the Oxygenviator5/5 (10.0/10)210varies by package

These are booking links. When our partner accounts are approved, we may earn a commission if you book through one, at no extra cost to you. It does not affect which operators clear our bar.

This is the half-day boat trip round Koh Tao for people staying on the island. The boat leaves from Mae Haad pier, and the listing describes the day as the viewpoint on Koh Nang Yuan, snorkelling at a reef it calls the Japanese Reef Garden, a stop at Mango or Lighthouse Bay on the north coast, and the hidden bays on the east side, with a Thai lunch on board. Morning and afternoon departures are both offered.

Two boats run it, and both clear our bar. The Klook operator scores 4.8 out of 5 from 82 reviews. The boat Oxygen, sold through Viator, scores 5.0 from 210, which is the deeper sample of the two. Most of the Koh Tao and Nang Yuan trips with big review counts leave from Koh Samui or Koh Phangan, which makes them a long day at sea for someone already on Koh Tao.

Check whether Nang Yuan’s fee is included. The island is privately run and publishes its own entrance fee of 250 baht per person for day visitors, with no single-use plastic bottles and no fins allowed. Ask the operator whether the fee is in the price, and leave the plastic bottle behind either way. Our separate listing for Koh Nang Yuan has the details.

About diving. Koh Tao is best known for learning to dive, and on 18 September 2026 no dive course or fun-dive trip on Klook had enough reviews to clear our bar. We will list dive operators when we can verify them to the same standard.

No price here. Klook quotes in US dollars and the trip is sold as morning or afternoon departures.

Best for

Seeing Koh Tao's coast and snorkelling it without organising the boats yourself

Skip if

You came to dive. This is a snorkelling trip, and no dive course cleared our bar

Start with the
honest list.