We camped here about a year ago with our 2 year old! It was great right on the beach. Just watch out for the coastal snakes

Right on the beach, beautiful Byron Bay but also close to shops so you can just walk everywhere.
If you are a family, I recommend week days as the weekends are full if young yahoos getting drunk and loud, but its quiet during the week. The cabins are great but if you have a caravan, there are beach front sites :)
We had a problem with our booking but the girls did everything they could to sort it out and found us another site when they were full. Couldn't ask for better service and its a top spot for a holiday :)

Approximate cost: $50