High Quality Content by WIKIPEDIA articles! Sai Tso Wan Recreation Ground is a multi-purpose playground in Lam Tin, Hong Kong. It is most notable being the first permanent recreational facility in Hong Kong built from a landfill. From 1978 to 1981, the knoll currently occupied by Sai Tso Wan Recreation Ground was known as Sai Tso Wan Landfill. The landfill served East Kowloon. During its operation, the landfill held approximately 1.6 million tonnes of domestic waste and commercial waste. Rubbish in the landfill stacked up to 65 metres high. After its closure in 1981, it was sealed with soil. The landfill then underwent a series of restoration works from 1995 to 2004, which turned the landfill into a recreation ground.