AIBU to resent the mess and antisocial behaviour from bank holiday visitors?

I live just outside a town that is very popular on sunny weekends - I have to stay away. If I go into town today there would inevitably be puddles of sick and so on.

I don't know why you think you will be flamed for saying this OP. It's the truth.
So many people have absolutely no respect for the environment.

On our local Facebook page the volunteer litter pickers often post photos of the bags and bags of detritus left by the day visitors. Including multiple towels, items of clothing and toys -just left in the beach. Remnants of barbecues, rubbish, food wrappers. It's disgusting.

And the mindless vandalism in beauty spots is heartbreaking

Definitely Covid seemed to alter a lot of people's mindset into not giving a damn

I thought you meant people you were hosting!
I used to live in the IOW. Some of my friends in a few towns it’s 80% second homes and they quite enjoy the peace off season, but also enjoy the buzz when all the DFLs arrive! There’s not a lot of mess as they either don’t make any or the town is set up to clean it all up. There’s no antisocial behaviour as such either, at most a bit of noise from the rather inebriated people at the end of the night. One of my friends runs a hotel and two of us rent out holiday homes (mine is on a holiday park), and there’s no issue. Keeps the local economy going (now about those ferry prices…).

Why would you get flamed for that?

it’s perfectly normal and reasonable to expect visitors to your area to take their rubbish home with them and not leave a trail of destruction behind them.

this weekend I’ve seen someone letting their kid potty next to their car parked on our village green and leave the contents and toilet paper behind 🤢

the dog poo bin is overflowing with general waste so people have just piled their bags of rubbish around the bin

theres a load of broken glass on the village cricket pitch from a broken beer bottle where the kids will be playing this weekend.

it is upsetting