Mt. Kawanori is located in Okutama, the westernmost area of Tokyo, and getting here requires a bit of time. I takes over two hour from Hachioji where I live in. From Okutama station you'll need to take a bus (crammed full of hikers) headed for Kawanori-bashi.
The trail up follows a mountain stream, so small waterfalls, river pools, the sound of water splashing over rocks, etc. are with you almost the whole way up, all of which made this one of the more enjoyable hikes I've done. Not all the waterfalls are small either, Hyakuhiro falls was about 40 meters high. Getting a close up shot was almost impossible as the falls were so high that they generated an impressive amount of wind and mist.
Up until Hyakuhiro falls, the trail had been pretty tame, but as we began our final acsent of Mt. Kawanori, the previous gentle rise turned into the climb of death.
To be honest there wasn't much to see from the top. The trees effectively screened out any view except for one small area, maybe about 30 degrees wide.