A friend of mine from the US has a lengthy stop-over at Heathrow the evening of Saturday, 30 April (leaving the next morning). I'm planning to head to London (by train) to get together with her. She's a folkie too, and I'd love her to have the chance to experience a good English folk club. Are there any folk clubs running that evening -- ones we could get to easily via tube or bus? (If it's too complicated or takes a long time to get there, we'll have to pass). If you can, please mention whether the club is smoking or non-smoking (non-smoking much preferred, but if it's only slightly smoky, we might still manage it).

Any suggestions much appreciated!