Phraphut Thachai National Park has its area in Kang Khoi Distric, Nong Khae District, Wihan Daeng District and Mueang District, Saraburi Province. It calls Khao Sam Lan Forest which, locates very near to Bangkok, is a productive forest, and has very beautiful places to visit, such as, mountain and waterfall. Especially, Khao Sam Lan Waterfall which is well known by traveler. It has a convenient way to visit, and visitor can take one-day trip from Bangkok. Phraphut Thachai National Park is about 44.57 squares kilometers, and has been declared a national since June 2, 1981. The area consists of many big and small mountains and plains in the valley. The highest peak is Khrok Mountain, about 329 meters above sea level. Traveler on the peak can see Saraburi Province's city and nearby districts very clearly. The forest of this area is the source of many waterfalls and streams, which go to maintain plantation of local people. The surface of this area is clay and sandy soil cover hard soil and rock.

Sam Lan Waterfall

Sam Lan Waterfall consists of the three-level floors of rock, over lapping each other, which about five meter per each step. The area has tables and chairs for traveler to go enjoying beautiful scenery and recreation.

Khao Samlan and Khao Mainuan Reservoirs

Khao Samlan and Khao Mainuan Reservoirs.

Roi Kueak Ma, Nang Chon, Krok I-woe, Phaeng Ma and Khao Daeng Waterfalls

Roi Kueak Ma Waterfall.