Yeah, I love Terrigal too. The only problem is that it's a bit of a bitch to get in and out of. That might just be me though
I actually went on a Contiki after year 12 instead of Schoolies (mum was so worried about my brother and I going on schoolies she paid for us both to go on tours to Europe instead). I'm so happy she did though. I think I probably ended up having a lot more fun (and ironically got in much more trouble) than I would have on the GC anyway. I went on another one when I was 19-20 and it was just as fun/crazy