I went to see the Shimotsuki Matsuri (霜月まつり) in Nagano this week. It got wild! Will have a video up on YouTube sometime after the new year. (Spoiler alert: there was a lot of splashing of innocent bystanders with boiling hot water).
@MizukiSaika I installed the app, saw a link in one of your posts. It’s super useful and exactly what I need. I’ve been trying hard to find info on less known festivals (I kept searching everywhere from websites to bookstores but an app never crossed my mind even though I’m an app developer myself, haha).