Browse guided river-tracing tours near Taipei on Klook.
3-4 hours
The usual: flashfloods, falling rocks, snakes, stinging things (wasps, spiders, caterpillars, nettles, etc)
The usual: helmet, tracing booties, waterproof bag, PFD, quick-dry synthetic clothes, food and water
Very fun trace despite all the pipes. Cool rock features! A few steep climbs, including a high technical one above a deep pool. Ends at a nice little waterfall just below a farmer's field. To return, take the trail on the right (east) until you cross a bridge, then follow the road with possible shortcuts.
I made a spreadsheet of the best river traces in northern Taiwan, check it out here: https://docs.google.com/spreadsheets/d/15QNhE9z3lhwz33C6V4P11dljPzWafFGKowzTi9Wrkjg/edit?gid=0#gid=0