Bueng Si Fai

Bueng Si Fai is a large natural freshwater lake in Nai Mueang Subdistrict, Mueang Phichit District, Phichit town, central Thailand. Covering about 5,000 rai, it is one of the largest freshwater lakes in the region and a central recreational area for the city. The lake features a surrounding public park, cycling and walking paths, an aquarium, and a giant crocodile statue referencing local folklore, making it a notable natural and leisure landmark.

Visitors can expect a large open freshwater lake surrounded by a landscaped public park with paved walking and cycling paths, fitness areas, and lakeside pavilions. The site includes the Bueng Si Fai Aquarium (Chalerm Phrakiat Aquarium) displaying freshwater fish, a large Chalawan crocodile statue, lotus and aquatic vegetation, birdlife, and open views especially at sunrise and sunset. The area is used for leisurely walks, jogging, cycling, photography and boating.

Bueng Si Fai is a historic natural lake that has long served as a water source and fisheries area for Phichit town. It has been developed as a public recreation and conservation area and is closely associated with the history of Phichit Province as an old settlement in the central plains.

The lake is culturally linked to the Thai folklore of Krai Thong and Chalawan, the mythical crocodile king believed to have lived in Phichit. This legend is commemorated by the large crocodile statue at the lake and is a symbol of the province, reflected in local festivals and the aquarium's crocodile exhibits.