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A firefly viewing event in Yokohama. In early June, Sankeien Garden extends its hours, allowing visitors to see fireflies on a specific path near its streams.

A firefly festival in Tokyo, this early June event features the release and viewing of 2,000-3,000 fireflies along the Kanda River and Tamagawa Josui.

A firefly festival in Fussa, Tokyo, is held annually in mid-June. The event releases approximately 500 fireflies in Hotaru Park for public viewing.