Watch the sunlight sparkling on the water as it flows over Jiulong Waterfall. Keep an eye out for any rainbows in the mist.
You'll be spoiled for sightseeing choice in Huangshan. Jiulong Waterfall is an ideal place to start here, but there are many other interesting attractions to visit. Huangshan Mountains, Hudongshui Scenic Area, and Yuping Cable Car are not far from the cascade of water and will top off your day nicely.
