I'm meeting a friend in London next week - we both have 2 teenage boys and go to London with them regularly but visits usually revolve around burgers and trainer shops so I'm looking for quirky, interesting things to do child free!
We're staying in Southwark so we'll spend some time pottering on the south bank / borough market. I wanted to get Skygarden tickets but that's not looking likely. We both know London well and don't need to do big sights, but looking for any little hidden gems.