HKUSAP Navigation is an app to help users to navigate the campus of the University of Hong Kong to find central time tabled classrooms using a Smart Address Plate (SAP) system. It has three operation modes – Position, FindShow, and Navigation. This app can only be used within the University of Hong Kong. hkusap is a pilot project of Prof. Anthony Yeh, of the Department of Urban Planning and Design of HKUrban Lab, GIS Research Centre, and Institute of Transport Studies of the University of Hong Kong. hkusap.hku.hk