I can add a few images for you, well not of the cave, but the area that it will be in.
Ok, you can enter a public area from Oldfield road....via this well made gate.
Keep left and follow the fence until you reach an opening on the top of the hill.
Bear left....following this path.
And if you keep left along the fence you get here.....
The outhouse sort of under the 'bright' green tree in the centre of this picture, and that tree is growing out of a 'cliff' type area made from sandstone
The area is fenced off so I went for a wander to try and get around the fence (The fence is just a wire, but I thought as it was sunny I would not wander around some randomly fenced off land in full view of the houses).
This area there are large 'valleys', so went to the bottom of the one by the cave house looking for a way to it. There is a small stream leading through here so I followed it for a bit until the shrubbery got a bit too dence for my t-shirt and shorts so I set up camp.....
Whilst here I tried my hand with an oscillator, but as it had not been PAT tested since 93 I thought I would leave it to the professionals.
The area smelt of poo, and was scattered with beer cans and bottles, so I decided to leave the camp behind for another day.
Hope this is of help to people.