Kugayama Firefly Festival 2026 offers a rare opportunity to experience fireflies in an urban Tokyo setting. The festival takes place along the Kanda and Tamagawa Josui waterways, where organizers recreate a seasonal tradition by releasing fireflies to create a soft, glowing display after sunset.

Activities take place throughout the day, but the highlight begins in the evening when the fireflies become most active. Visitors can walk along the riverside paths and watch as the lights move gently through the darkness, creating a calm and atmospheric contrast to the surrounding city.

Kugayama Firefly Festival attracts families and local visitors looking for a quieter seasonal event, and the limited viewing window makes timing important. Arrive before sunset to secure a good spot, as firefly activity typically peaks between 7:30 pm and 9:00 pm.

Information

Start: Jun 6th 2026 at 1:00pm

End: Jun 7th 2026 at 9:00pm

Kanda and Tamagawa Josui (Kugayama Area)

3-24-1 Kugayama, Suginami-ku

https://kugayama.org

￥0