Hiking Trail HK is a Hong Kong hiking mobile app. The Android version provides offline map and over 100 hiking trails in HK, and supporting route drawing, route sharing, route length/gain/loss calculation, time estimation, GPS location, compass, track logging, deviation alert, and etc. The Wear OS version provides offline map in HK, and supporting route editing, route length/gain/loss calculation, time estimation, GPS location, compass, track logging, deviation alert, and etc. Due to the limit