Namtok Chat Trakan National Park

Namtok Chat Trakan National Park (;) is a national park located in Chat Trakan and Nakhon Thai Districts of Phitsanulok Province of Thailand, established in 1987. It encompasses Lam Kwae Noi, Daeng and Chat Trakan forests a substantial portion of Chat Trakan District.
Topography.
Most of the park is mountains covered with evergreen forest. The source of several rivers is within the park, including the Khwae Noi River and its tributary the Phak River. The area of the park is part of the Luang Prabang montane rain forests ecoregion, Phu Khai Hoi is the highest peak in the park with .
Chat Trakan Waterfall.
The Chat Trakan Waterfall, a.k.a. Pak Rong Waterfall, is located within the park. The sandy beach near the falls is suitable for swimming. Some of the cliffs near the falls are inscribed with yet unexplained rock carvings. The stream from the waterfall joins the Phak River.
History.
A survey called "Khao Ya Puk Forest Park" was set up, in March 1982 the name changed to "Namtok Chat Trakan Forest Park". Namtok Chat Trakan was proposed for inclusion in the national parks system in 1985. Namtok Chat Trakan was declared the 55th national park on 2 November 1987.
Climate.
Summer is between March and May, with temperatures around . Rainy season is between June and October. Winter from November till February is very cold at night.
Flora.
Plant species found within the park include:
Fauna.
In the park are the following animals:
And also various species of birds.