In reply to Ramblin dave:
> * Reasonably possible to get to by public transport (from Cambridge, to be precise, although I'm not expecting people to look up specific bus and train times for me or anything) after work on a friday
>
Climbers in Cambridge become very dedicated.
I'd have thought that the CCCC would not require you to be an ace climber before joining. That's half the point of clubs.
Re trains. For a weekend it's really only the Peak, as described above. There used to be camping in the field by the Plough Inn in Hope. There's a climbers bus to Stanage from Sheffield in the summer. Froggatt and Stoney Middleton are accessible from Grindleford station. Millstone/Lawrencefield from Hathersage. But you do need to leave early on a Sunday to get home. From Cambridge a train from Peterborough via Doncaster may be the quickest route.
The Lakes is possible but you have to leave the hills very early on the Sunday (like 3pm - not compatible with having an epic on a crag). As well as the line into Windermere there is a bus from Penrith to Cockermouth via Keswick which connects with most train arrivals. Cumbria have a bus-booklet, which is probably also online. There is also a coach from Preston to Ambleside and Keswick but not at a time of day useful to climbers.
North Wales is easy enough as far as Llandudno junction or Bangor, but buses up to Betwys or Llanberis fade out too early for Friday night use, and disappear entirely on Sundays.
As you'll gather, I have spent quite a bit of time working out how to get to the hills without use of a car, but not really got the perfect solution. And I no longer live in Cambridge.