It must have been a sleepless night for many visitors who camped out with giant pandas at Chimelong Safari Park in south China's Guangzhou City last Friday. Two twin pandas, who had moved indoors to avoid the hot weather, were the main attraction of the night. Staff at the park prepared tents, sheets and towels for visitors who were separated only by a glass wall from the twin pandas. "I've never stayed overnight with giant pandas. I'm so excited," said a young visitor.