Single Destination · Kentucky
There's a waterfall in southeastern Kentucky that makes rainbows in the dark. On clear nights around the full moon, the mist off Cumberland Falls throws a moonbow — a lunar rainbow — and this is the only place in the Western Hemisphere where you can predict one on a published schedule.
The falls, the trails, and the moonbow are all free. Here's how to build a trip around it at every budget, plus the one trick that decides whether you actually see the moonbow or drive home disappointed.
The moonbow only appears on a clear night. Two nights near the full moon roughly doubles your odds for one extra cheap campsite.
The park publishes them each year, clustered around each full moon. Winter moonbows are especially vivid.
Rooms fill fast on moonbow weekends. Reserve well ahead and time your stay to a published date.
The walk to the overlook is dark. A headlamp keeps your hands free and your footing sure.
Budget calculators, packing checklists, and a heads-up when each new state guide drops.
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