Among the group was Wang Libo, a scientist, who brought his mother, wife and their four-month-old baby daughter on the tour.
"I found I had little knowledge about nature," Wang says. "We tend to emphasize the pragmatic aspect of science, and believe all the valuable discoveries were achieved in the laboratory, and now I realize natural science is just as important.
"We used to talk a lot about loving nature and life, but you need to know it before getting your hands into protecting it.