2.5-3 hrs one way.
The river's water level rises quickly in a downpour! Choose a day in nice weather!
A helmet, life jacket and river tracing boots. A 10-meter rope or webbing.
Yasheng Waterfall(24.03165,121.54109) is in the mainstream of Meilun North Creek, into which the creek to Orion Waterfall flows. The river tracing isn't escpecially difficult; just go along the river and you'll eventually get there. If you want to go further up, there is a very sketchy thin rope set up by local hunters on the right side(facing downstreams) near Yasheng Waterfall, and you will need technical equipment for going up and back down. 2 days are suggested for a further exploration to trace more upstreams. It is possible to combine Yasheng Waterfall and Orion Waterfall in one day.