People attend the inaugural ceremony of the Voluntary Lugu Lake Patrol at Ninglang, southwest China's Yunnan Province, on Oct. 30, 2011. The government of Yunnan said it will invest 256.6 million yuan (40.36 million U.S. dollars) to improve the environment around the Lugu Lake, a major sightseeing spot in Yunnan known for its marvelous landscape and unique matriarchal system. [Xinhua/Qin Qing]