Held every year in Soma and Haramachi on Fukushima's east coast, the festival runs from July 23 - 25 and features several events.
The second day features a full parade through the streets of Haramachi, horse racing exhibitions, and the main event, the contest of the sacred banners.
The riders, in full armour and with colourful flags flying from their backs, scramble to catch one of forty banners shot high into the air, then ride through the crowds to a shrine to receive their blessing.