World heritage site recovers slowly in wake of earthquake

Over the past year, Ren Guiyuan has spent at least four hours every day touring Jiuzhaigou National Park in the mountainous areas of Sichuan province.

His job is to look for geological hazards at the UNESCO World Heritage site, which was rocked by a magnitude-7.0 earthquake a year ago.

"It may take longer when it rains, because I need to go through every corner," said Ren, who has been working at the park for two decades.