Moonbow Cumberland Falls 2024 Season. The cumberland falls moonbow, also called a white rainbow or lunar rainbow, is formed just like a rainbow when light is refracted in tiny water drops. Judy mcginniss the schedule for moonbows at cumberland falls state park.not to far from you.

| scott kunath / shutterstock Unlike many kentucky state parks, cumberland falls is intentionally open 24 hours to allow hikers to check out the moonbow.