TrailWatch: Your Best Hiking Guide Hike with a purpose: join us in protecting Hong Kong’s country parks! TrailWatch is the first smartphone app in Hong Kong that combines conservation with the appreciation for Hong Kong’s country parks. When you hike with TrailWatch, you can track your hikes in real-time using GPS, and help surveil the countryside by reporting unusual incidents. You can also plan and share your trails, as well as check out routes created by other users. Enjoy. Share. Protec