This post is from last year. This year the main event will be held on the 17th (this Sunday). Here's a link to the official schedule (in Japanese):

http://fujisakigu.or.jp/reisai/nittei.html

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UPDATE

Rescheduled for October 9th due to the typhoon:

http://higojournal.com/archives/fuzisakiguuakinoreitaisai-enki.html

-- Kirk