I wasn’t a big partier, but I once went to Myrtle Beach because I had to see the ocean for my own sanity and even though it was an 11-hour drive, it was the closest coast I could get to. It wasn’t quite summer yet and it was after spring break, but it was still filled with rowdy college students getting drunk, puking and pissing everywhere, screaming from their cars which were blaring loud music, etc. That’s what they were doing when it wasn’t party time.
Thankfully, I stayed in the state park in a tent and didn’t have to deal with them much.