The three million spider lilies were planted by local volunteers as part of a community project to preserve the riverbank environment.
The flower is known as 'Higanbana' because its blooming period aligns closely with the autumnal equinox, a time known as 'O-higan' in Japan.
The festival grounds are located in the vicinity of the Nankichi Niimi Memorial Museum.
The red spider lily bulbs contain toxins, which historically led locals to plant them along rice paddies and river dikes to deter burrowing rodents.
The Spider Lily Festival, known locally as the Higanbana Festival, centers around the banks of the矢勝川 (Yakachi River) in Handa, Aichi. Approximately three million red spider lilies bloom along a two-kilometer stretch of the riverbank annually. The event honors the work of Nankichi Niimi, a celebrated children's author born in Handa, whose famous story 'Gon the Fox' is set in the local landscape. The flowers typically reach peak bloom in late September, coinciding with the autumn equinox. The festival features straw-thatched huts and traditional scenery that recreate the atmosphere described in Niimi's literary works.
The wooden bridge crossing the Yakachi River provides a panoramic view of the red flower carpet lining the water.
Bring a portable fan and bottled water, as the riverbanks offer very little shade during sunny afternoons.
Wear comfortable, closed-toe walking shoes as the path along the river is unpaved and can be uneven.
Check the Handa Tourism Association website starting in early September for real-time blooming status updates.
Do not attempt to park in local residential areas; use designated festival parking lots to avoid congestion.
The festival occurs exclusively during the peak blooming period in late September.
Do not pick the flowers, as they are fragile and the entire riverbank is a protected community project; remain on marked pathways.