In what is known as one of the strangest festivals under the sun, participants wearing nothing but loincloths splash each other with hot water.
|Date||Mid-January every year (tentative)|
|Location (venue)||Kawarayu Onsen, in front of Oyu|
|Address||491-6 Kawarayu, Naganohara-cho, Agatsuma-gun, Gunma|
Event organizers may change the date and time. Please check the official website.