Each autumn, Iwamizawa in Hokkaido comes alive with the Hyakumochi Festival, the city's largest event dedicated to mochi. First launched to commemorate the 100th anniversary of Iwamizawa's founding, this beloved festival has grown into a local tradition that blends community spirit, cultural heritage, and plenty of sweet treats.
At the heart of the festival is the spectacular mochi pounding ritual, where one of the world's largest mortars takes center stage. Measuring 2.2 meters across and weighing a whopping 5.5 tons, the mortar is paired with a 200-kilogram pestle. Rather than being struck by hand, the pestle is hoisted by around 200 participants pulling ropes in unison, before being dropped into the mortar in a dramatic display. Each session produces about 60 kilograms of freshly pounded rice cakes.
Visitors can then enjoy the results, with the mochi served in sweet red bean soup. Around 1,200 servings are distributed free of charge per session, drawing long lines of festival attendees eager to take part in the tradition. Alongside the pounding, the festival features parades, taiko drumming performances, children's activities, and the popular Longevity Mochi Throwing ceremony, where participants catch rice cakes for good fortune.
Food is another highlight, with streets lined by dozens of stalls offering everything from savory bites to seasonal sweets. For two days, the city center transforms into a bustling celebration, offering visitors the chance to experience both the taste and the energy of Iwamizawa's rich food culture.
Getting there
The Iwamizawa Hyakumochi Festival takes place at the Iwamizawa City 4-jo Nishi 2-chome intersection. Iwamizawa Station is the closest public transport stop, and it's about 7 minutes away on foot.
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