Go Dive Lanta offers dedicated snorkelling trips by both speedboat and Big boat to many islands within Ko Lanta's National Marine Park. You can visit Ko Rok by Speedboat for superb snorkelling with fantastic visibility and superb coral quality. There is a 4-Island Tour by Traditional Longtail Boat that visits the islands of Ko Ngai, Ko Wan, Ko Mook (Emerald Cave), and Ko Chuek.

Ko Chuek
Relaxation
Tree inside Lagoon

Girl in Lagoon
Entance to Lagoon
Emerald Cave (Koh Mook)
The Emerald Cave is a secret lagoon inside the island of Ko Mook. It can only be reached by swimming down a tunnel underneath the rocks, which brings you out into a completely secluded bay area with limestone cliffs soaring high above you on all sides. The water glows a deep emerald green and it's rather like swimming into the middle of a big, green volcano. There's even a sandy beach to relax on inside the cave.

Snorkeling with family
Koh Ngai
Koh Ngai
Snorkellers can also join any of our dive excursions. We usually visit at least two sites each day. You can snorkel at each dive site and also during the surface interval (often at a third snorkelling site). All trips include boat rental, equipment hire, breakfast, lunch, fruit, soft drinks and water. Non-snorkelling friends and family are more than welcome to come along to swim, sunbathe and enjoy the day out on the boat. We normally leave the pier at 8.00 am and return at about 3.30pm.

The water temperature in the Andaman Sea ranges between 28-32 degrees C, making swimming and snorkelling conditions extremely pleasurable.