2-3 hours.
*The detour route around Jingying Waterfall is on a landslide slope. *There are 6 check dams on the way to Yunhai Hot Spring. Some climbing-ups are nearly vertical for several meters.
Helmet is suggested.
*A lot of camping space in the valley. *The road from main road to Taluowan River is steep and winding, and thus not suitable for cars of low chassis. But scooters are fine.