Camping becomes burgeoning trend in ChinaWorld welcomes China's resumption of outbound tourismChina's air passenger trips to reach 9 million during May Day holidayMigrating grey cranes fly to national wetland park in SW China's Yunnan to overwinterMigrating grey cranes fly to national wetland park in SW China's Yunnan to overwinterAutumn view of Potala Palace in Lhasa, SW China's TibetView of Great Wall in BeijingXi's Vision Injects Confidence, Wisdom into Forging Closer ChinaTibet launches winter tourism campaign to lure more visitorsWintering birds return to China's largest recovering freshwater lake