This evil looking crack is Hunt Pot – a 200 ft. deep pothole on the slopes on Penyghent in North Yorkshire – not too far from where I live.
The area abounds in caves and potholes, some many miles long – 55 miles the longest, although some of it is only accessible to cave divers.
This was taken in dry conditions, in flood the water turns into a brown torrent and hurtles down hole and making the rocks all around it slippery and even more dangerous.
The water sinks into the floor of the pothole and the way on is blocked at the foot of the shaft, the water resurging in the valley bottom some way away.
Several years ago someone I knew jumped the full width of the shaft at it’s widest point for a bet! I am not really sure why…