Yellow River's Hukou Waterfall returns to full forceSwans pictured at lake in ShandongSW China's Yunnan makes great efforts to protect wildlife speciesPalace Museum raises the number of daily visitors to 12,000Village benefits from ecological improvement of Erhai Lake in YunnanIn pics: natural landscapes in AfricaView of Shuangjiang ancient town in ChongqingCat cafe in Bydgoszcz, PolandChina's tourism market embraces robust recovery over May Day holidayMigratory whooper swans winter in Sichuan