We have a journey from Kent to Derbyshire in a few weeks with a 6yr old dd and a 6 month old ds. My ds is not too good with car journeys so we want to stop somewhere he can have a roll around and a play and my dd can let off some steam!
I think around Milton Keynes is roughly half way so we are looking for somewhere that doesn't require a big diversion from the M1.
Any ideas?