A friend and I are planning on heading down to the GP this year, and neither of us have ever been to PI before, and are a bit excited so starting to look at it now

What is camping at the track like? I understand that there is two camping areas, highside and trackside, which is better? We are just a bit worried it might be a bit feral there?
Or are there any caravan parks within walking (read: stumbling) distance?
Cheers!