Picture choosen by: MissWenny Sun Best Time to Visit Jiuzhaigou Nature Reserve The best time to visit is September through November, when you're most likely to have clear skies and (particularly in October) blazing colours to contrast with the turquoise lakes. Nearly 300 km² of the core scenic area are covered by virgin mixed forests. Those forests take on attractive yellow, orange and red hues in the autumn, making that season a popular one for visitors.

Summer is the busiest but rainiest time.

Spring can be cold but still pleasant, and winter, if you're prepared for frigid temperatures, brings dramatic ice-coated trees and frozen-in-place waterfalls (as well as lower prices).