Cheers Bones Out! When I got back and checked other reports on the place I realised I missed that switchboard. Probably a few other cool things too. This is one place I'd definitely love to revisit! To be honest we were checking out other stuff in the area and hadn't planned to go down, but after recently hearing it had been sealed we decided to check if it was. You're right about the air down there, luckily I had a P3 mask in my bag but I was still glad to get out into fresh air.