This was found beside the river at Simatai as I walked back down the last leg of the Great Wall back to the bus and the restaurant at the end of the walk.
This was on the Flying Fox on the Great Wall at Jinshanling in China.
The trip down the mountain was 5 minutes attached to a rope...it looked far too dangerous for me, but the young tourists loved it. Read the people not allowed on the lift..and I certainly fit a few of them.