Taking the kids to London tomorrow (aged 12 & 13). Can anyone give any tips on where to visit? I'm hoping to make it a cheap day out so want to avoid the usual expensive attractions. We've already done the main museums & want to do something a bit different. The kids are really hoping to go 'celeb spotting' so any tips would be appreciated.
Also I'm planning to drive from MK to Watford met station & get railcards. Is this the cheapest way to do it?