Discover the iconic 4 islands in the south-east of Koh Lanta on board the traditional longtail boat with stops at Koh Chuek, Koh Mook, Koh Ngai and Koh Maa. Experience the best places to snorkel with crystal clear water and varieties of underwater coral reefs, sea creatures and colourful anemone fishes. The highlight is a swim through the 85m cave tunnel at Koh Mook which leads into the amazing inner lagoon with a secret beach.

On this one-day trip you will discover 4 iconic islands in the south-east of Koh Lanta. Get picked up from your hotel and head to the pier in Lanta Old Town. Board the traditional longtail boat with an English speaking guide and depart to the 4 Islands.

You will arrive at the first snorkel spot after a ride of approximately 45 minutes. Swim in the crystal clear water of Koh Chueak, a small karst islet with sea caves and small sandy beaches between Koh Mook and Koh Ngai.

Around an hour later visit Koh Mook, the largest island on this tour. It is best known for its Tham Morakot (which means Emerald Cave in Thai) and blue lagoon with a secret beach in the centre of the island. The entrance to the cave is located on the western side of the island and is only accessible during low tide. The cave itself winds for about 80 metres to its other exit, onto a white beach with an emerald pool surrounded by steep cliffs.

Continue to Koh Ngai to enjoy a delicious Thai picnic lunch on the beach, consisting of steam rice, fried mix vegetables, Massaman Curry with chicken and seasonal fruits. Koh Ngai is a charming island that features a dramatic interior and a spotless sandy beach along its eastern coast. Mountainous and covered by tropical forest, the island is surrounded by clear waters with magnificent corals, making it a perfect site for snorkelling.

Cruise further to the 2nd snorkel stop at Koh Maa where you can feed the fish with bread or bananas. Thousands of giant bats can also be seen here.

Head back from Koh Maa to Koh Lanta and arrive at the port in the old town at approx. 15.30. Get transferred back to your hotel on Koh Lanta.

This trip is for everyone who loves water activities and is not afraid to swim through a cave in perfect darkness for about 80 metres!