We have been conducting a firefly-viewing tour for this season.
If you are staying at a ryokan in Kurokawa Onsen between now and the end of July, you can join an evening firefly-viewing tour.
Just make a reservation before 4pm at the reception of the ryokan where you are staying, as seats of tour bus are limited.
Meet at the Visitor Center at 7:50pm for an 8pm departure, the tour is free and lasts about an hour.
If the weather is too wet or cold there may not be many fireflies, but you might have comfortable time.
The tour is cancelled in case of rain.