Wachirabenchathat Park

Wachirabenchathat Park, commonly known as Rot Fai Park or State Railway Park, is a large public park in Chatuchak District, Bangkok, forming part of the contiguous three-park complex with Chatuchak Park and Queen Sirikit Park. Established in 2002 on former State Railway of Thailand land to commemorate the 50th birthday anniversary of Crown Prince Maha Vajiralongkorn, it features landscaped gardens, lakes, cycling tracks and a butterfly garden, serving as a major recreational green space for residents and visitors.

Visitors can expect a spacious, landscaped urban park with open lawns, tree-lined paths, lakes and canals. The park offers a 3.6 km paved cycling track, jogging and walking paths, fitness areas, picnic lawns and a Butterfly Garden and Insectarium. Birdwatching is possible around wooded areas and water bodies. The park is connected to adjacent Chatuchak Park and Queen Sirikit Park, allowing extended walks or cycling within the combined green complex.

Developed on former land of the State Railway of Thailand and opened on 28 July 2002 to commemorate the 50th birthday anniversary of Crown Prince Maha Vajiralongkorn. The park was created as part of Bangkok's expansion of public green space in the Chatuchak area alongside the older Chatuchak Park.

Serves as a major urban recreational and leisure space for Bangkok residents, used for exercise, family outings and nature education through its Butterfly Garden. Together with the adjacent parks it forms one of the largest public park complexes in central Bangkok.