I can't recall the name of it, but the place is in Kyoto (not far from Osaka). It's the mountain with the thousands of red Tori. Follow it to a point around half way, and then you'll see what looks like a service path leading off it (steps down on a steep section and hooks back once or twice). Follow the path along for about 10-15 minutes, and you'll find a huge bamboo forest... Around this time of year, I'd imagine it'd look amazing with the foliage all over the ground. Looks very Samurai/Ninja-esque. Very, very pretty.
Also check out the grave yard about an hour away by train in the mountains. It's immense, and you'll easily get some unique shots if you go to the very old sections.