Available languages
8 hours
Mobile ticket
Traditional Longtail Boat – A slower, more local way to explore the islands.
• ️ Emerald Cave at Ko Mook – Swim through a sea tunnel into a hidden lagoon.
• 3 Snorkeling Spots – Discover different reefs and marine life at Ko Cheuek, Ko Maa, and Ko Ngai.
• Beach Buffet Lunch – Enjoy Thai food right on the beach at Ko Ngai.
• Less Crowded – Departs from Lanta Old Town for a more peaceful, authentic vibe.
Public transportation options are available nearby
Specialized infant seats are available
Not recommended for travelers with spinal injuries
Not recommended for pregnant travelers
Not recommended for travelers with poor cardiovascular health
Suitable for all physical fitness levels
For a full refund, cancel at least 24 hours before the scheduled departure time.
Lunch
Use of Snorkelling equipment
Free pick-up and drop off
• Passenger insurance.
The national park fee. An additional charge applies: 100 THB for children aged 3–11 years. And adults
Select a pickup point
09:00 AM Depart from Lanta Old Town by longtail boat. (Approximate travel time: 45 minutes to Ko Cheuek) 09:45 AM – Ko Cheuek Arrive at your first stop. Enjoy snorkeling in crystal-clear water surrounded by colorful fish. 11:00 AM – Ko Mook Explore the famous Emerald Cave, a hidden lagoon accessed through a sea tunnel. This is the highlight of the tour. 12:00 – 13:30 PM – Ko Ngai Enjoy a Thai buffet lunch on the beach, followed by free time for relaxing or sightseeing on the island. 13:45 PM – Ko Maa Arrive at your final snorkeling destination. Enjoy the vibrant underwater life once again. 14:30 PM Depart Ko Maa and head back to Lanta Old Town. 15:30 – 16:00 PM Arrive at the pier and transfer back to your hotel with great memories.
Pickup included
66 reviews
Total reviews and rating from Viator & Tripadvisor
Ben B,
Jun 30, 2025
- Review from Viator
The price we paid for four people is a fraction of what we would expect elsewhere. The lunch was flavorful and filling. The guides were knowledgeable and provided snorkeling gear. A great way to spend a full day. Make sure to apply lots of sunscreen!


travelmamanow,
Jun 8, 2025
- Review from Tripadvisor
We felt very unsafe with our tour guide. He did not communicate where we were going or what we were doing. He largely sat at the back of the boat smoking the whole time and threw life jackets at us. He took us to the Cave at high tide when the waves were very rough and said go in there. No one felt safe and he had only one flashlight. My daughter got stung by a jellyfish and they did not have any first aid kit on the boat. We got caught in a bad storm on the way back and the driver got us back safely but it was harrowing. The beach was gorgeous but the snorkeling was not good, so don’t choose this tour to snorkel. Choose it if it is a nice day and you want to get out on the water and make sure you have all the safety precautions you need yourself- think at your own risk.
Meander12907984703,
Apr 4, 2025
- Review from Tripadvisor
Excellent experience especially the beach meal at Koh Ngai and the Emerald Cave. We recommend. Guided very nice.




Lina R,
Mar 7, 2025
- Review from Viator
while the agency is mostly professional , the tour organizer are slow. we ended up leaving the pier at 10:30 and came back at 4:00. Also alot of transport time between the island. so we ended up spending 2 hours in total between snorkeling and the lunch/ beach . waste of a whole day for 2 hours ....
Catia S,
Feb 12, 2025
- Review from Viator
Perfect . The staff are amazing and funny , and took us on a beautiful tour. The cave and the beach was amazing
JoanneB971,
Feb 7, 2025
- Review from Tripadvisor
I don’t recommend Lanta Longtail tour, Koh lanta. We booked with them and they cancelled due to being oversold but never bothered to tell us, so we waited for pickup this morning and no one arrived, I rang them, that’s when they told me that they had no space. I have spoken on the phone to book them and followed up with an email at the time of booking but they did not bother to contact me to cancel. We leave the island tomorrow so didn’t have a chance to book elsewhere, so very angry 😡 the silver lining is I read the bad Google reviews and it looks like it might have been a good thing. I guess I’ll never know. Every time I try to level feedback they say this isn’t anything to do with us…. I rang the number listed on brochure to book and communicated by emailed on [email protected]


parlezsocialmedia,
Feb 2, 2025
- Review from Tripadvisor
The guys on the boat were fantastic and friendly they were 5/5 however what we didn’t know was that it’s jelly fish season. If you ventured in snorkelling you came out with stings. Everyone on the boat experienced this. So we didn’t go through the cave to emerald lake etc. even the people wearing protective clothing were stung on their ankles :(


Andrew G,
Jan 29, 2025
- Review from Tripadvisor
We booked this tour in September 2024, we were in Thailand for two weeks Jan 2025 and this was the only tour to let us down, the booking was confirmed several times by the company and I even recieved an email the night before but they still failed to show up, after several heated and rude telephone conversations they finally agreed to return my money but wanted me to drive to a restaurant to collect it, no apology or explanation as to why the trip never went ahead I was trying to support a small business but I will use get your guide or Viator in future, very dissatisfied. Money was returned eventually by bank transfer but we still missed seeing some lovely places as it was to late to book elsewhere.😡
575alm,
Jan 27, 2025
- Review from Tripadvisor
What a fabulous day out. Absolutely fantastic scenery and only short periods on the boat. The secret beach is incredible and the swim through the cave to get there is great fun. Lunch on the beach on the last island was really really good. Would recommend this trip to break up your holiday. Kids would love it too. Some amazing sights when snorkelling. A great day out for sure.
Louise Z,
Jan 3, 2025
- Review from Viator
1hr boat ride to the first island, 25mins of snorkelling, then a short ride to the emerald cave, then another 10-15 min ride to the last snorkelling destination. The second spot was much less crowded with other boats and had a bigger area to snorkel in. We then got a lunch on another island which was yummy. The smell of petrol and people smoking in the boat was a bit off-putting, but other than that the trip was enjoyable and great value for money.
Operated by Rainbow Lanta Travel & Tour