We checked in just before dinner and decided to find something to eat in Rainbow Beach. There was a little book in the motel room highlighting local attractions, one of which looked like a large sand dune called the Carlo Sandblow. We stopped for a quick look before dinner and it turned out to be an awesome place to watch the sun set.
As we were leaving, we saw a group of three guys jogging up and down the steep side of the dune. I have absolutely no idea how they did it, but they jogged past us as we were walking to the parking lot, which was slightly embarrassing. If you can jog up and down sand dunes, I salute you.
The whole area was pretty big and I only planned to walk halfway down because it was steep, but the view was amazing and Peter and I ended up walking almost all the way to the edge overlooking the ocean. Which was cool, until we had to walk back up.
I'm sure there's a scientific explanation for the various colored sand we dug up, but I don't know what it is!