Five colors lake, Jiuzhaigou valley, Sichuan, China

over attendance natural reserve mountain freshwater lake autumn nature tourism tourist woman man crowd high angle shot overview temperate forest biosphere reserve footbridge unesco's world heritage list tourism facilty october water surface jiuzhaigou nature reserve overexploitation destruction of the environment destruction of biodiversity biodiversity environment environment protection environment management biodiversity management natural area freshwater wetland area temperate season seasons atmosphere ecotourism tourism journey leisure person individual group enumeration shot forest infrastructure transport month of year water (matter) matter (substance) sichuan (province) china east asia far east asia eurasia old world continent