The national park is about 958 sqkm in size. The Sai Yok waterfall lies along the Death Railway bulit by prisoners of war. Get off at the Sai Yok station.The waterfall can be reached by train or bus and is a popular place with Thais on weekends. There is a 'tourist' train that leaves from Bangkok early at weekends.There is some accommodation available and also places to eat.
Moo 7, Tambol Sai Yok Kanchanaburi Kanchanaburi Thailand