Another ID with thanks to Neil Macdonald. A scene where David Chiang is exercising with his buddies in what looks like a local sports ground. It turns out this was actually filmed in the rather extensive grounds of the Diocesan Boys' School just off Argyle Street on Kadoorie Hill. The school is one of the top ones in HK and as such people tend to sell their grandmothers just for the chance of getting their feet in the door, in reality though the school has a proud history (it has turned out some notable alumni) - scarred by events during the Japanese Occupation when it was used as a military hospital as well as for munitions storage. There are also rumours that the school swimming pool was used for executions.