This mine has been worked over centuries (probably back to Roman times) and extends many miles. It is located in the village of Box, near Bath. It was used to extract limestone which was used to build many of the buildings in the local area and had military uses during WW2. Box is now a designated Site of Special Scientific Interest, on account of the number of bat species which reside in the mine. There are many famous sites to see within Box Mine including the Cathedral (an open shaft to the surface) and the robots (a large number of bricks which people have taken to making into robots and other things). Exploration of the mine is only recommended to experienced cavers with guides and maps. On this occasion, I visited with a group who had been in the mine a number of times before, and we spent a few hours trying to find the exit!
One entrance can be found in this quarry face