Every summer, photographers in Japan wander inside dense forests to see fireflies illuminate the night sky. From May to June, around dusk, thousands of these beautiful insects come out and play. Photo by Hiroyuki Shinohara
Great Smoky Mountains National Park - for about two weeks in June, fireflies descend on Elkmont Campground and put on a synchronized light show. When we lived in Gatlinburg, seeing the fireflies was one of my favorite things to do.