Kawarake Nage (throwing an earthen cup) (かわらけ投げ)
"Kawarake Nage" refers to throwing an unglazed or sunbaked earthen sake cup or dish from a high place, wishing protection from evil and so on. In Chinese characters, this is described as 土器投げ or 瓦投げ.
Summary
Jingo-ji Temple in Kyoto City is regarded as its birthplace. The rumor is that this spread as entertainment at drinking parties at cherry blossom-viewing spots in high places all over Japan.
There are still some places where you can enjoy Kawarake Nage in old tourist sites.
Related tourist sites
Jingo-ji Temple
Baijodake sancho Park
Asukayama Park
Kanka-kei Gorge
Yashima