Phlio Waterfall National Park is located in Chanthaburi province, covering areas in Mueang Chanthaburi, Laem Sing, Klaeng, and Makham districts. The park spans approximately 134.50 square kilometers, or 84,062.50 rai, featuring lush forests and a complex of high mountains that provide a cool and pleasant climate year-round. The park is home to remarkable natural attractions, including Phlio Waterfall, Trok Nong Waterfall, Klong Narai Waterfall, and Makok Waterfall, alongside reservoirs like Huai Ta Bo and Kongsirae. Additionally, it boasts historical sites such as the Alangkhorn Stupa, the Jula Sirachumphot Stupa, and inscriptions bearing the initials of Kings Rama V, VI, and VII.