Held by Hiyoshi Taisha Shrine in Otsu, Shiga Prefecture, Japan (not to be confused with the Sanno Matsuri held in Tokyo), the annual Sanno-sai is held during April 12-14 and features processions, torches at night, violent rocking of portable shrines, and a boat procession on Lake Biwa. This Part 1 video shows the festival on April 13, 2009 which climaxed with the violent rocking of mikoshi portable shrines at night. Photos: http://photoguide.jp/pix/thumbnails.php?album=11
some comment on what exactly all this means would be useful to a non-Japanese, domo arigato
manxman99 8 months ago