The short answer
Koh Ngai (or Koh Hai) is a small, peaceful island in Trang, further south than Phi Phi and Lanta. Car-free and road-free, it's known for two things: exceptionally clear water and a coral reef reachable straight off the beach. It's one of the few islands in the region where you get excellent snorkeling without a boat, just wading in from the sand.
Who it's for
- Ideal for: couples, snorkelers, lovers of absolute calm, travellers who want to switch off.
- Not for: those after buzz, bars or nightlife — Koh Ngai moves at the pace of its few resorts.
What to do
- Shore snorkeling — the coral is a few strokes from the sand, in clear water.
- Snorkeling trips to nearby reefs and the other Trang islands.
- Sunsets over the silhouettes of Koh Muk and Koh Kradan.
- Doing nothing, genuinely: beach, hammock, disconnection.
How to get there
By speedboat from Koh Phi Phi (Tonsai, departures around 09:30-11:00), Koh Lanta, and the Trang mainland. A natural stop if you're heading south to wilder islands.
When to go
November to April: dry season, clearest water, best snorkeling. Like its Trang neighbours, Koh Ngai winds down May to October (resort closures) — check openings before booking off-season.
What to combine it with
The Trang trio: Koh Ngai + Koh Muk (Emerald Cave) + Koh Kradan, as a calm-islands circuit. You can then head up to Koh Lanta. Tell us how far south you want to go and our team will build the itinerary and transfers.
