I'm hoping to meet up with a friend over half term but not sure where to go and am hoping that some genius Mumsnetter may have the answer! It needs to be somewhere between the home counties and Birmingham/Worcestershire, but more importantly needs to be able to occupy 4 kids, mixed genders, aged between 8 and 15 (although the 15 year old may not come so oldest could be 12) while their mothers catch up in peace! Sadly they are beyond the point where a muddy tramp around a National Trust property appeals to most of them. We've previously done Warwick Castle, Cotswolds Wildlife Park, Cadbury World, and a motor museum. Any other suggestions?