How to find Siian (Siyan) Yu Waterfall in Taichung County

I’m trying to track down directions to Siian (or Siyan) Yu waterfall, a swimmable waterfall apparently about 30 minutes outside Taichung City. Does anyone have any ideas on how to get there?

I found a video on YouTube about the waterfall but it doesn’t have any directions:

youtube.com/watch?v=EimADH_G … tube_gdata

Thanks in advance!

Kate
jarofbuttons.wordpress.com/

Just ask the youtuber…