Island guide
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.
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Nearby destinations
Explore more places and local guides.
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. · 5.3 km away
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. · 7.8 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. · 8.5 km away
Trang Islands
The Trang Islands are the provincial coastal island region spanning beach destinations, fishing communities and protected marine sites along the Andaman coast. · 8.5 km away
About Ko Mook (Ko Muk)
The island combines fishing, rubber cultivation and tourism in a largely Muslim community. Farang Beach and Sabai Beach are named coastal highlights; Tham Morakot, or Emerald Cave, is a separate coastal attraction on the western side. The island lies in Ko Libong Subdistrict, Kantang District, rather than being a subdistrict of its own.
Arrange a boat transfer and identify the arrival pier and onward journey to your accommodation. Emerald Cave requires separate planning: tides, sea conditions and park restrictions determine whether entry is safe, and a local guide is recommended. A visit to the island does not guarantee cave access. The announced June–September 2026 closure period has passed; confirm current park notices for the cave and protected visitor areas before booking an excursion.
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- Last reviewed
- 22 October 2026
- Content owner
- Thailand Navigator Editorial Team
- Page type
- Island guide