In spring the ice and snow begin to melt, and water and stream begin to flow and mountain flowers blossom. The soft and lazy spring sun kisses the surface of the lake and the spring shoots. The sight is really refreshing and touching. In summer, Jiuzhaigou Valley is overshadowed by green trees. And the silver waterfall expresses their most unrestrained feelings. Autumn is the most splendid season in Jiuzhaigou Valley when colorful leaves and woods are reflected in the water and the fallen leaves are floating amidst the shinning waves of the lakes. The sky here is vast, clear and blue. The most beautiful scenery created by nature is right before your eyes. As winter comes, Jiuzhaigou Valley becomes quiet, serene and poetic. The mountains and forests are covered by snow, and the waterfall and lakes are crystal clear and jade-like. The ice on the blue lake surface shows wonderful and different lines as the temperature changes between sunrise the sunset.