I was doing some residential teaching for the last 2 weeks. A group of year 9s from Chile came on a school trip, and I gave them lessons about English and British History/Culture and took them to various historical places like Cambridge and Canterbury. I was working in the middle of nowhere, in this old manor house in the middle of a national park. The house had been a boarding school from the 1920s to 2005, and the company I worked for was only using part of the building. We were the last school tour to be there before it was going to be handed over to the new owners, who no-one knew much about, but didn’t seem to be using it as a school. There were lots of locked up rooms that had been used by the boarding school, but weren’t used for the language holidays, like the science lab, and they had piles of school stuff lying everywhere. The attitude was pretty much feel free to explore, just make sure the kids don’t get into anywhere that could be dangerous.