This attractive park was the site of the mysterious Kowloon Walled City, a Chinese garrison in the 19th century that technically remained part of China throughout British rule. Neither government wanted to have anything to do with the 3-acre enclave, so it became a lawless slum infamous for its gangs, prostitution and drug dens. The British eventually relocated the 30,000 residents and built a park in its place. There’s a model of it on display at the park. If you're taking the bus, alight opposite the park at Tung Tau Tsuen Rd.