Island guide
Ko Ngai
Ko Ngai, also known as Ko Hai, is a Krabi island with a long eastern beach and shallow reefs, commonly reached through Trang's island routes.
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Nearby destinations
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Ko Chueak
Ko Chueak is a limestone island and snorkelling area between Ko Muk and Ko Kradan in Trang, where currents make guided access important. · 3.2 km away
Ko Waen
Ko Waen is a small rocky island between Ko Muk and Ko Kradan, known as a coral-viewing stop on Trang boat excursions. · 5.9 km away
Ko Mook (Ko Muk)
Ko Mook, also written Ko Muk, is a settled Trang island known for its village life, western beaches and the sea entrance to Emerald Cave. · 11 km away
Ko Kradan
Ko Kradan is a beach and reef island off Trang, with a national-park visitor area and accommodation reached by boat. · 12 km away
About Ko Ngai
Ko Ngai is an island in Ko Lanta Yai Subdistrict, Ko Lanta District, Krabi Province, within Mu Ko Lanta National Park. Although frequently included in Trang travel itineraries, its administrative location is in Krabi. The long beach on the eastern side faces offshore limestone islands, with shallow coral areas close to shore.
The island suits a beach stay or a snorkelling stop rather than a road-based sightseeing circuit. Boat itineraries often link it with Ko Muk, Ko Kradan and other islands on the Trang coast. Confirm the exact departure pier and whether the transfer lands directly at your accommodation or another beach landing; boats and connections vary by season.
Smaller islands in this park are subject to seasonal conservation closures and weather-related restrictions. Check current national-park notices and the return boat before committing to a visit. Snorkel only where conditions and local guidance allow, leave coral untouched and allow extra time if your onward journey depends on a sea transfer.
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- Last reviewed
- 22 October 2026
- Content owner
- Thailand Navigator Editorial Team
- Page type
- Island guide