Ko Ngai is an island district in Krabi Province, but actually it can better be reached via Trang in the Southern Andaman Coast. Like many other coastal destinations in southern Thailand, it is known for its diving and long white beaches.

Ko Ngai (Hai) is a tiny island measuring 4 km long and 2 km wide. Mountainous and covered by tropical forest, much of the coastline is indented with rocky headlands, while the eastern part has some beautiful sand beaches, and in the south coconut plantations and more beautiful smaller beaches. The island has a white beach and clear water and is surrounded by magnificent corals.

- Wikivoyage