This annual event in 2021 was canceled due to COVID-19

Hachioji Float Parade Festival | Aug. 2-4 2019

One of the largest float parade festivals held in greater Tokyo. 4000 people in traditional summer costume will dance and parade with 19 floats on Koshu-kaido Street.

Hachioji Matsuri Festival
八王子まつり

August 2nd(Fri) - 4th(Sun) 2019
Location: Hachioji (near JR Hachi Station), Tokyo

Night Parade : 18:30 - 21:00
To find details (schedule) see their official website.

Official Website
https://www.hachiojimatsuri.jp/

YouTube by iktonie
https://youtu.be/z89Zh5XaWwA

Getting there by train from Shinjuku
From JR Shinjuku Station, take the Chuo-sen train (express train Tokubetsu Kaisoku)  Travel time: 36 min. Fare: 474 JPY. 5-min walk from JR Hachioji Station.
OR
From Keio Shinjuku Station, take a train bound for Hachioji. Travel time: 34-min. Fare 360 JPY (Cheaper!)
10-min walk from Keio Hachioji Station.