Too busy to hunt for something else for you again. So here's a bit of history from the NaNo novel.
Crowds that turn up at the seaside these days aren’t the same as back in the old times. When I first started touring the coast doing summer seasons all you saw were families. Mum and dad and a couple of kids who spent their time on the beach doing innocent things like building sandcastles and shrimping in the rock pools and playing on the penny slot machines on wet days. It wasn’t until the nineteen sixties that you ever saw groups of young people out by themselves. You won’t remember because you’re far too young but there used to be gangs of lads called Mods and Rockers and they would arrive at the coast on a sunny day and turn the beach into a battleground. You could easily tell them apart so they all knew who to fight: the Mods were on scooters that had a hundred more mirrors than they ever needed to see behind them, and the Rockers were on motorbikes that were polished up so much you’d wonder that they hadn’t rubbed the chrome off. On the worst days the lot of them were armed with knives and happy to kill each other if they had the chance.