17 18 glowing orbs as "frequently infrequent." 5. Witness the moonbow of Kentucky. Cumberland Falls State Resort Park near Corbin, Kentucky (606-5288860/corbinkytourism.com) features a thundering waterfall dropping 68 feet. It's a frothy fountain that's delightful in the daytime. But come here at night and join hundreds of others who squint to see one of the few mysterious moonbows in the world, visible on moonlit evenings. The arch appears much like a mysterious flashlight shining across the base of the falls. 6. Hike to the highest waterfall. More than one state claims a place to be the East Coast's highest waterfall (or highest east of the Mississippi, or highest east of the Rockies, or highest in Eastern North America). Only way to settle this: Take a tapemeasure into the woods and check out the 700-foot plunge of Buckeye Falls in northeast Tennessee near Erwin (netta. com/waterfalls); Virginia's Crabtree Falls, dropping and cascading for 1,200 feet in the George Washington National Forest (fs.usda.gov/gwjnf/); and North Carolina's 411-foot July/August 2016 45http://www.fs.usda.gov/gwj/