Koh Ngai is an island with powdery white sandy beaches along the east coast, according to the map of Koh Ngai. which is a good source of shelter from ocean waves Koh Ngai is a border area of Krabi and Trang provinces, so we choose to travel in both provinces. Click here to read how to get to Koh Ngai. According to the area, Koh Ngai is considered an island in the area. Trang more than Krabi. Traveling from Pak Meng Pier, Trang Province, is more convenient for those who intend to go to Koh Ngai. But there are quite a few tourists, especially foreigners, choosing to travel from Koh Lanta to Koh Ngai.