Chris, as you know, when we visited Kangaroo Island in 2011 it was before we got our van. But, for what it is worth, Stokes Bay is stunning. I didn't take any notice of the camping area because, at that stage, I never expected to cross the threshold of a caravan. However, it was not crowded when we were there but that was in October. It may be a different story during school holidays. Hopefully you will get some more useful replies.