At Nasu Fishing Land in Itamuro hot spring, “Appreciation of natural firefly” is held in every July. Here is the highest place in Tochigi to watch firefly, rare in Japan, you can see both Genji firefly and Heike firefly dancing. It a famous thing of Itamuro hot spring with a long line of many visitors every year. Why don’t you feel Japanese summer culture at Itamuro hot spring?