Maybe “work camp” suggests something radically different to you than it does to me. To me, it indicates that there is nothing to do in London besides work, and

Maybe “work camp” suggests something radically different to you than it does to me. To me, it indicates that there is nothing to do in London besides work, and that more or less everything in London is work related. Tourists visit London because there are lots of interesting things to see and do. People who live in London also get to see and do those things.