Several years ago we had the wonderful opportunity to actually see a "moonbow". A moonbow is the pretty much the same as a rainbow, however the "bow" colors and effect are from the light of the full moon and not the light of the sun. For those who celebrate "Full Moon" events, a celebration including this moonbow would be wonderful!
Cumberland Falls State Park in Kentucky is where this moonbow can be seen. Cumberland Falls is also referred to as the "Niagara of the South" and is 125 feet wide. With or without a moonbow, the falls are spectacular.
Below are the September 2013 dates that the moombow can be observed: