[identity profile] stillcarl.livejournal.com 2010-12-14 09:38 am (UTC)(link)
Just to add to the confusion, there's a few claims for it being the Kawachi Fuji Gardens in Kitakyushu, Japan. See...

http://www.reddit.com/r/pics/comments/d48in/

And one of the links there leads here...

http://miyuki-smile.seesaa.net/article/149559923.html

where you'll see Andrew's tunnel (3 pics down), just photographed from the other end. Google translates the blog title as 'Yahatahigashi Ward, Kitakyushu City Park Department Kawauti Kawauti'.