We are staying in central London for a week towards the end of July this summer and we were hoping to travel to the coast for a week after that we have two kids dd(11) and ds (9). We would have to hire a car and are not sure if Brighton would be the closest beach type place to go we did always fancy cornwall but it looks like it could be quite a drive any recommendations would be appreciated.Not too sure where we be best for things to do with the kids we would be going self catering.Thanks in advance