If choosing to take the hike up from Kudoyama, in addition to the regular hiking precautions, consider that roughly 1 km of the course runs directly beside a golf course. In addition to stray balls wear a hat, it seems the owner may be fighting an insane one-sided border dispute because, as of June 2010, around where the trail doubles as an access road, somebody has installed a couple of electrified tripwires over the trail, which appear to be hooked up to the golf links. Be aware.
An otherwise complete set of localised advisories can be found on the English or Japanese hiking maps available at the temple at the very start of the course.