jiuzhaigou valley panda lake with five color autumn foliage, china

jiuzhaigou valley china sichuanpanda lake fivecolor autumn foliage national park sichuan vibrant colors fall leaves scenic beauty natural wonder travel destination unesco world heritage pristine seasonal transformation breathtaking landscape panda habitat ecological diversity picturesque scenery attractions five color 熚眫海 xiã³ngmäo hçž features curious patterns blue green giant pandas drink though sightings years empties multi-stream multi-level waterfalls dropping three step