panda lake, jiuzhaigou, china: a mirror to the sky and the yellow pine tree trees,

jiuzhaigou valley china travel destinationpanda lake fivecolor autumn foliage national park sichuan vibrant colors fall leaves scenic beauty natural wonder destination unesco world heritage pristine seasonal transformation breathtaking landscape panda habitat ecological diversity picturesque scenery attractions china: mirror sky trees reflecting tranquility surrounding forest srichuan surroundin yellow pine tree