Phu Kradueng National Park (Thai: อุทยานแห่งชาติภูกระดึง), in the Si Than sub-district of Amphoe Phu Kradueng, Loei Province, is one of the best known national parks of Thailand, with a high point of 1,316 m (4318 ft) elevation at Khok Moei.
Phu Kradung is a cool and comfortable all year round. The average temperature is 15°C. In the cool season, temperatures on the coldest nights reach freezing. In the rainy season, the weather can change quickly. the park is closed between June and September every year for visitor safety and forest rejuvenation