Apologies for suggesting he may be a nonce.Hold on, I never described anyone as a paedo, he has in past overstepped the mark trying to get off with young female campers (which seems to be why he’s in the caravan offsite), but it’s a huge jump from that to being nonce.
Maybe I shouldn’t have mentioned the term ‘sex pest’ because even that’s probably a bit unfair, I’m sure it’s not how he sees himself, he will just see himself as jack the lad, and doesn’t appreciate that his boss doesn’t like him trying to get off with the customers.
However he is a liability, consequently I'd still get him off your payroll at the end of the season.
I'd leave all restaurant staffing issues up to whomever runs food operation, if they wish to re-employ him, it's up to them, but lay down the law when they take over that you don't want him on any part of the campsite, or using your facilities (which means realistically camping in a field next door will not be practical unless he has built in basic plumbing/sewerage.)
Whomever takes over the food operation is going to be a junior partner (as well as a tenant) so you need to be able to work with them.