Penglai waterfall (中文版： 蓬萊瀑布) is a very tall waterfall in Yulin, Gukeng Township (雲林縣古坑鄉). It used to have cable cars that went to the top of it but they have since been destroyed, do you'll have to walk. The hike to the base is very short and easy though.
The path to the waterfall only involves 15 minutes of light walking followed by climbing over a few easy rocks to reach the pool. It's most impressive after a hard rain.
The main waterfall is about 50 meters tall and comes off in two spouts. It's most impressive after a heavy rain.
Yunlin County, Gukeng Township
Waterfall: 23.59769, 120.70832
Parking: 23.59476, 120.70249
Detailed Map: https://goo.gl/WeOT83