The Yayoi Festival (弥生祭, Yayoi Matsuri) is held on the 13 to 17 of April each year at Futarasan-jinja. It dates back 1,200 years and is regarded as the festival that beckons in the spring season. Numerous portable shrines (mikoshi) are carried as part of the festival and visitors are welcome help with the lifting, too.
Event details are taken from official sources whenever possible. It is always prudent to check the official event website before attending to make sure that there have not been any changes. If you know of an error in the calendar, then please let me know through the contact form.