Can anyone recommend a nice campsite that is not more than 4 hours drive from London (accounting for traffic getting out of London)? I'd like to book 5-7 days for myself and my two kids mid August. I prefer smaller campsites, ideally with access or very close to water - beach/lake/river/pool and stuff for the kids to do nearby (they are 10 and almost 7). A shop and pub within walking distance would be good too. Not Dorset as we are going there in July. I'd love to go to the Lake District but it's just too far in the car for the kids who get car sick. Really appreciate any recommendations you can give!