Kachiya Matsuri commemorates the Heian court bureaucrat Fujiwara no Hidesato's prayer for victory, after which he successfully quelled an uprising spearheaded by samurai rebel Taira no Masakado.
The festival dates back to Hidesato's offering of his bow and arrow to the shrine after his victory in battle. In today's modern iteration of the festival, you’ll witness the dedication of a kachiya (victory arrow) and a traditional warrior parade. Here's the samurai procession route, which begins at 1pm, on Google Maps.