OK
@Dashing
Google Earth view here...
View attachment 114389
According to Google you are staying in cottages in bottom LH corner, underneath the inset that says Map.
Go up the road and the last public parking is where marked. Maybe half a mile from where you are. Probably best to drive! Park on LH side of road, then cross over. Ignore the ropes that say "Do Not Cross". They are there for milennials and snowflakes. Take care and you can look down into the hole. It is big, and the sides are steep. Stand roughly where the map says Hodge Close.
Then walk up the road (another half mile) through the cluster of cottages and bear right. I've marked the way in, but as said it is indistinct, and tough. But it gets better. Then you walk along a canyon, through the arch and you'll come to the diving board, which is a lot of steel work that is mangled by falling rocks. Don't worry they have stopped falling now. (Would I lie to you?)
It's perfectly safe for dogs and wives, though southern townie types may be out of their comfort zone. Worth going? Definitely.