Our app HKU Go, targets HKU students and visitors. For HKU students, we want to enable them to view the campus incident reports to stay updated on events in different buildings. On the other hand, visitors can play AR games on campus to learn about buildings in HKU. Therefore, our application has three building blocks – the map, AR objects and incident notices. The application relies on the map to provide hints of AR game and incident notice for the buildings. Users can react with AR objects when they reach the prespecified region. And the incident notice is fetched from the campus information system for incidents related to each building, for example, the maintenance work, seminars, etc.