Here's one for the books. I haven't seen a course going straight up a mountain since the Mt. Marathon race in Seward, Alaska.
Mt. Yasumi in Kure city may not be the steepest on record, but you're still ascending 500 meters inside a 7 km course.
Date: May 6th, 2007
Distance 14.5 km
Start Time 10:00 AM
Deadline April 10th
Traveling by train from Hiroshima. Take the Kure Line from Hiroshima Station (広島駅) to Kure Station (呉駅). Take the #3 bus from Kure Station until you reach Ondo Lodgeshita. The starting line is a few minutes walk from there, in Sakura no Sato Park.
Registration includes admission to the Ondo Lodge Onsen, a rather popular bathhouse in the Kure area.
Map to Ondo Lodge Onsen
GetHiroshima race details
Map of Yasumiyama