Ruilong Waterfall (中文版：瑞龍瀑布) is a tall waterfall in Nantou, Zhushan Township. The water falls into a large bowl, which is a great for swimming. There is a large and easy path, which crosses a very nice suspension bridge, but it doesn't go all the way to the waterfall. Walk up the river an additional 5 minutes to get to Ruilong Waterfall. If the water level is high, you'll have to swim and use the rope on the right side of the pool below the waterfall.
Ruilong Suspention Bridge and Trail
(Update - 2017/4/8: The trail is under repairs, but there is a road under the bridge which will take you to the waterfall.)
Nantou County, Zhushan Township
Parking: 23.66437, 120.68883
Waterfall: 23.66053, 120.69492
Detailed Map: https://goo.gl/kSmvV7