http://outdoorclubjapan.com/index.php?topic=1402
http://www.nagatoro.gr.jp/kouyou_lightup/index.htm
UPDATES Nov 13th[更新]:
As this event is open to guests I will move it to the social event section so they can see.
You can bring guests on this event - only at the Autumn BBQ camp, Christmas party camp and golden week camp. They will have to pay a 1,500en guest fee, in addition to the 1,000en organizer fee which everyone pays.
You must sign up here on this page by making a reply - do not email