This week, Roy and I decided to head back to the Sydney area. Earlier this month, 11 of Australias covict sites were added to the World Heritage List, including the Hyde Park Barracks, Old Government House, Cockatoo Island in Sydney and the Old Great North Road in NSW. These sites have become well known and popular tourist destinations, but there are other sites which are less well known but also have a significant convict history in the area. This week, Roy decided he wanted to visit one of these sites and tell you the story of its use. So this week, Roy visits Heritage Park in Castle Hill.