From the article at The Daily What:
Fantastic Mr Fox of the Day: A four-month-old fox slides down a conveyor belt at an abandoned gravel quarry near the rural German hamlet of Bursfelde.
Brit Duncan Usher, who snapped the photo, says he saw two kits using the conveyor belt as a makeshift slide. “One ran back to the top of the conveyor belt and then started to walk back down it, stopped and sat down,” Usher is quoted as saying. “After a few seconds it started to slide down the conveyor belt using its front paws to drag it forwards…
I have not seen this type of behaviour amongst free living wild animals and I was really surprised and pleased to witness and capture this unusual event.”