Phu Kradueng National Park, in the Si Than sub-district of Amphoe Phu Kradueng, Loei Province, is one of the best known national parks of Thailand. It has a high point of 1,316 m elevation at Khok Moei. It was proclaimed a national park on 23 November 1962, making it the second national park of Thailand after Khao Yai National Park. The park is closed to visitors during the rainy season.