I must say, it's not just the little kids that love cubbies like this. This was taken with 8 second time exposure so was a lot darker than this. The small opening on the right hand side back wall actually turned into a 10 metre tunnel that popped out in a sun room looking into the gorge. Heaps cool. The first bit I had to crawl and I was a little worried I'd get stuck. My pants and camera have nice wear marks now.