Spend a private day exploring four Andaman islands by traditional longtail: snorkel coral gardens, relax on Koh Ngai’s white sand, and swim through the 80‑meter tunnel into Koh Mook’s Emerald Cave. This flexible charter is ideal for families and small groups seeking a personalized island‑hopping experience.
More ways to explore the area's outdoor wonders
The longtail slips from the pier and the Andaman Sea quickly opens—turquoise shallows give way to darker swells, limestone cliffs leaning like old storytellers. You’ll spend a day aboard a private wooden boat, skimming between Koh Mah, Koh Chuak, Koh Ngai and Koh Mook, stopping to snorkel coral gardens and, most famously, swim through an 80‑meter sea tunnel into the Emerald Cave.
Difficulty
easy
Duration
7 hours
Fitness Level
Suitable for most fitness levels; should be comfortable getting on/off a small boat and swimming short distances
Wildlife
History
Ko Lanta’s Old Town grew as a trading and fishing hub; the wider island group has long been a waypoint for Malay traders and local sea‑gypsy communities.
Conservation
Coral reefs here are sensitive to warming and physical damage—choose operators who enforce no‑touch policies and use reef‑safe products.
Reserve your spot on the Koh Lanta 4 Islands by Private Longtail Boat with Emerald Cave today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Bring reef‑safe sunscreen
Sunscreen without oxybenzone protects coral and keeps skin safe during long sun exposure on deck and in shallow snorkeling spots.
Waterproof your valuables
Use a dry bag or waterproof phone case—boat decks get wet and the tunnel swim requires secure gear.
Time your cave entry
Aim to swim into Emerald Cave around mid‑tide timing recommended by the crew to see the lagoon’s emerald light and avoid strong currents.
Carry small local cash
Bring Thai baht for drinks, tips, and small purchases on Koh Ngai or Old Town where card machines are scarce.
Reef‑safe sunscreen
Protects skin while preventing harm to corals.
summer
Waterproof phone case or dry bag
Keeps electronics and documents dry during transfers and tunnel swims.
Lightweight snorkel set
While masks are provided, a personal set ensures a better fit and hygiene.
Water shoes
Useful for rocky shore entries and the short tunnel approach on Koh Mook.