Trang Islands: Koh Kradan, Koh Ngai & Koh Mook

South of Krabi, the Trang archipelago delivers some of Thailand’s most tranquil beaches in February. Koh Kradan’s east coast is famous for electric-blue water and shallow coral gardens perfect for novice snorkelers. Koh Ngai is tiny, relaxed, and ideal for hammock days, while Koh Mook’s Emerald Cave adds a sense of adventure on calm, mid-tide visits. Expect sunny, dry weather and easy longtail hops between islands. Facilities are simple compared to Phuket, so book key stays, carry cash, and plan transfers ahead. If you’re chasing that castaway feel with peak-season weather and few crowds, Trang’s islands are a superb alternative to the headline names.