martlakes: Following a helpful report of the state of things, came and checked it out.
As told, someone has decided to break the cap and cause damage - "anything for MY find" it would appear. I'm sorry, but some geocachers shouldn't be allowed out. As the 'sport' has grown the small percentage of humans who are stupid, selfish and reckless have infected the game and it seems any mayhem, damage, danger or inconvenience is ok "as long as I get to find the cache".
Long gone are the days when it was mostly outdoor folk with some respect for the countryside and a sensible if nerdy attitude to having fun. A few 'modern' cachers are just totally self-centred and don't care about others or anything it appears.
Anyway, the caching world has moved on in other ways too, and this type of hide has become less unusual and isn't the challenge it once was. Given that and the vandalism it's time to shut it down and move on.
Thanks to all those sensible cachers who visited and enjoyed the challenge, the clue (one of our best!) and the location. Yah boo to all the idiots.
Bye bye, Barrow End Rocks - you were fun!