4 Island Emerald Cave Tour: Snorkeling and Beach Exploration from Koh Lanta by Longtail Boat

Take a longboat ride to the four neighboring islands of Koh Lanta. Visit Koh Chuak and Koh Maa for an unforgettable snorkeling experience in open waters, and take a stroll on the pristine sandy beach of Koh Ngai. The tour’s crowning glory is the Emerald Cave on Koh Mook, where you’ll swim 80m to discover a hidden lagoon inside the island.

Duration: 7 hours
Cancellation: 24 hours
Highlights
  • The Longtail Charter and Tours - Meet the crew at the office in Saladan Pier.
  • Ko Chueak - After a ride of approximately 45 minutes you will arrive at the first destination. Enjoy great snorkeling in crystal clear water of Koh Chueak , a small karst islet with sea caves and small sandy beaches between Koh Mook and Koh Ngai.
  • Ko Muk -…
What's Included
  • Professional English-speaking guide
  • Life jackets
  • Basic accident insurance
  • Drinking water, soft drink & seasonal fruits
  • Thai buffet lunch on the beach at Koh Ngai
  • Snorkeling equipment
  • Hotel round trip transfer
What's Not Included
  • Gratuities
  • Entrance fee to Hat Chao Mai National Park of 200 THB/adult and 100 THB/child
Additional Information
  • There is a minimum of 10 people required to run this tour!
  • The tour program is subject to change due to weather & sea conditions
Location
Koh Lanta Old Town Pier
Meet at the pier in Lanta Old Town 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
3.8
(12 Ratings)
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Diana_m
Jan 25, 2025
A Great Day - This trip was exceptional. I was picked up at my hotel, no hassle to find a ride to a meeting place. The boat ride was exciting, the snorkeling just beautiful and the swimming through the cave and into the isolated beach among the cliffs, was nothing less than breathtaking. I am a solo traveler yet was part of a fun group of people. The tour guides worked hard to make sure we were all safe also. I recommend this trip.
Review provided by Viator
Rebecca
Jan 20, 2025
Little trip to Paradise! - We have just had the best day on our trip. Really grateful for calm waters as the weather has been perfect (would definitely recommend choosing your day carefully) The snorkelling was fun and we saw so many beautiful fish especially on our second stop! The Emerald cave is an experience like no other (probably wouldn't get past EU health and safety) but you have a life jacket, it's amazing and you feel a real sense of wow when you emerge from the dark swim to the inner island! Lunch was lovely, crew were great, overall just the the most amazing day!! Real range of ages in our trip - if you can swim and enjoy beauty, nature and a bit of adventure - go on this trip!! Yes there are quite a lot of boats around but it never felt crazy busy and our boat guide had our back all the time:)
Review provided by Tripadvisor
Ambassador713036
Feb 1, 2025
Jou - Really nice trip. Cave wass beautiful like all the beaches. We were lucky with the weather, sun was shining and no wind at all.
Review provided by Tripadvisor
Bertwinh2020
Mar 5, 2024
Nice experience - Well organised, nice guide, tasty food and lots of fruit in between. Just a shame about little to no colored coral and fish anymore. And snorkeling for a maximum of one hour during the entire day. Fortunately, we had already been to the cave in the morning, so the crowds were not too bad, although the beach was still completely full. Entering the boat via the steps certainly requires some strength, but it is doable.
Review provided by Tripadvisor
Giselle_g
Mar 9, 2020
4 Island Tour to Emerald Cave by longtail boat from Koh Lanta - This tour was very good, however we where a bit unlucky with the weather, as it was overcast and rainy. It didn't affect the tour though as the water was still fine, the beaches where great and lunch was al fresco on a lovely beach! Well worth recommending!
Review provided by Viator
Cathymerke
Nov 20, 2023
Four island tour..from Koh Lanta - Our Long tail tour included pickup at 0830, 30 min to pier, Koh's Chuek, Kraden, Muk(Emerald Cave) &Ngai. It was a 50 min ride in a very loud, diesel smelling,overcrowded boat(24 +3 crew) to the first snorkeling stop Chuek. Among many other boats and people. Lots of fish to see but the water was so churned up from the boats it was dirty and cloudy. Could have passed on that stop. Next stop, 20 minutes to Kraden. Snorkeling on a large reef that is sadly quite brown but water was much clearer and lots of fish, giant clams and urchins to see. Had a nice lunch on the beautiful beach there. The crew were very friendly and helpful. Next stop 25 min to Muk. A beautiful 80 metre swim( life jackets if needed) guided with light through a beautiful cave. The water appears green and so peaceful. Through the cave you emerge on a stunning beach surrounded all sides by cliffs and trees. This was the best part of the day!. Be sure to give the guide your camera to have once you reach the beach. We were lucky it was not crowded , only our group. Back on the boat and had engine trouble. Sat for almost an hour bobbing in the heat. Understand things happen but everyone was ready to head home, we were already over an hour behind schedule. Went 25 min on to Ngai for a quick stop and drink. Unfortunately our time there was cut short , it's a very pretty beach with turquoise water. Next 50 min back to the Pier at Koh Lanta and 25 min truck ride to hotel arriving back at 6:30 pm It was a super long day , in my opinion too much travel time to balance the experience. It ended up being a 10 hr day with only about 4 hrs of experience and not great snorkeling. I'd recommend hiring a speedboat, go to Koh Muk early then find a nice island (Ngai ?) for a couple of hours then home. I must say the crew was really good and it's pretty impressive he was able to fix the motor / starter without many tools on board.
Review provided by Tripadvisor
Markys1985
Dec 13, 2018
Not very good experience - We been very excited to do this 4 island trip, but we had a bad experience with this company. From beginning nobody talk with us we didn’t know it who is our tour guide or if we even have one. From Ko Lanta to first island it took us more than one and half hour on completely rough and stormy sea, on which the boat swings so much from one to other side that we just waited when we end up in the water. And all people was just scared, crying and vomiting it was horrible experience! They take you out in any conditions even when is not safe! When we finally got in first island one guy came and just said here you have one hour for snorkelling.for me I will not recommend this tour and also my recommendation is always take western agency is will be such a more safety
Review provided by Tripadvisor
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up to 15 guests
1 Adult
March 2025
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