As in with no adult/parental supervision?
A friend has just put up pictures of the holiday we went on when we finished high school. We were all 17, apart from one girl who was 18 and bought all the booze, and it was our first trip away without parents. We stayed in a caravan park and there were a bunch of other teenagers there for schoolies' week as well. I remember there being about 50 kids on the beach at night all drinking, sitting around bonfires and generally having a great time. We'd got the train down and back and we all thought we were so grown up.
I am sure the sight of 50 teenagers on a beach now would have me running in the other direction ?
What was your first "adult" holiday? I don't even know if "schoolies' week" is a thing here, or whether it's different because you finish school at 16 here and then choose to continue...