Try out the 9km+ trail at Stone Gate Mountain Camp—hike the stairs to the 'Stone Gate', continue up past the waterfalls, and cross the ridge to complete the full loop.
Bookings and more info for Stone Gate Mountain Camp hike

Hike through and out of a park to reach a beautiful ridgeline trail with views of mountains and the Miyun Reservoir. Shunyi pickups only for this one.
Bookings and more info for Immortal Valley Loop