Experience the magic of the Cumberland Falls Moonbow, one of the few places on Earth where this lunar rainbow appears. Join Big South Fork Adventures for an exclusive night rafting tour that places you in the heart of the mist under the glow of the full moon. Yes, we will raft you to the bottom of the falls! Rafting to the Cumberland Falls during the day is a tremendous opportunity. Seeing it at night is amazing and awe inspiring! A moonbow, or lunar rainbow, is a rare optical phenomenon that occurs when moonlight is refracted through water droplets in the air. To the naked eye, these typically appear as ghostly white or silvery arcs, but long-exposure photography can reveal a full spectrum of colors. In 2026, major viewing events include a Supermoon on December 23 and a rare Blue Moon on May 31, both of which provide the extra brightness needed for a vivid display