Samnak Song Tham Krabok is located at Prong Prap hills, Khun Khlon Sub-district, 25 km from the centre of Saraburi along Phahonyothin Road. It is on the left side if coming from Mueang district of Saraburi. Its entrance is between Km. 132-133. It is a well-known rehabilitation centre for drug addicts. This monastic residence was established by a Buddhist nun, Mian Panchan in 1957. After her death, Luangpho Chamrun Panchan, her nephew, has continued the mission. He was awarded the “Magsaysay Award” on 10 September, 1975.