We've used Littlehampton a number of times over the past 13 years & have always found it well run. This time there were more families which is fine, but kids tearing round the toilet block on bikes, scooters & boards ignoring the 1 way distancing signs wasn't. It's not the kids fault it's the unthinking parents. I read some comments about noise but we didn't find it a problem. You're only a few miles from the A27 so there will be the odd siren & I can't see the problem with 4 trains an hour. What can be a problem is the queue of traffic in to Littlehampton whe the level crossing gates close, but if you're on holiday what's the rush. We generally find the site very good but it would be even better if we were the only ones on it lol.