This is a festival where you can freely observe fireflies. It is held every year as an activity that contributes to the conservation of the natural environment. By observing wild fireflies, participants learn the importance of nature conservation. Participants cover their flashlights with red cloth to quietly appreciate the beautiful glow and fantastical scenes of flying fireflies.

Fee: Free participation
Date: June 8, 2024 - June 9, 2024 (Saturday and Sunday) 18:30-21:00
Location: From Aitaka Regional Park Katsubarazawa River Firefly Village to the duck pond at the baseball field