49th Japan Three-Day March (第49回 日本スリーデーマーチ)

The 49th edition is held in Higashimatsuyama as a new step toward the event's half-century mark. Organizers say the previous edition brought many words of thanks from walkers and partner groups, and they plan to keep evolving the march while honoring that enthusiasm.
Walking distances are 5 km, 10 km, 20 km, 30 km and 50 km; there is no 40 km course. The entry fee is the same whether you walk one, two or three days, and walkers may switch to a different distance on the day without notifying the organizers. Residents of Higashimatsuyama, Kumagaya, Fukaya, Ogose, the towns of Hiki District and Higashichichibu qualify for a local discount.