This wonderful festival is coming up again. It's on the 18th and 19th May (that's Friday and Saturday) . It's always a good fest in such a unique setting.
There's a courtesy vintage bus which will take you to the festival from the railway station (donations welcome). Or weather permitting you can walk along the Chesterfield Canal. Or even get a taxi.
Highly recommended (and I'm in no way associated with the event - I'm just an enthusiastic punter!)