It's summer school holidays here and there is always something to do with the time. Yesterday we went to Rainbow Beach, which is a little town south of Fraser Island. You can read more about it here. I don't know if it is the best page to refer to but it mentions the sands and the sand blow nearby we visited. Below is the beach at Rainbow Beach itself - this is where the four wheel drives can access the beach.
This is the sand blow. The access is at the top which is nice for slow people like myself. There isn't any climbing. But this is what the kids did when they saw it.