Hadaka
Hadaka is a Japanese term meaning naked or bare. In contemporary usage, it is most closely associated with Hadaka Matsuri, or naked festivals, held at various Shinto shrines and Buddhist temples across Japan. These events are characterized by participants wearing little more than a fundoshi (loincloth) and performing purification rites and ritual activities that emphasize endurance and communal renewal.
The best known example is the Saidaiji Hadaka Matsuri in Okayama City. This festival takes place annually
Hadaka Matsuri exists at several other sites in Japan, each with its own local customs and rules.