The Moonhole is actually a natural arch in the cliff, but in the 60's some people built a commune(?) out of stone below it. Rocks fell, and they decided this building was unsafe, then many more stone buildings were built into the cliffs nearby. You can even rent a few as guest cottages! We took a tour of some of the buildings. They are architectural marvels.
Crystal Cooper took this photo while on a catamaran ride to Mustique.