Koyasan or Mount Koya is the site of a large temple settlement about 50km south of Osaka. One of the highlights of Koyasan is the Okuno-in, Koyasan's cemetery, a wonderful, mysterious forest lined with giant, several hundred year old Japanese cedar trees and over 200,000 tombstones and Buddhist memorials. I stayed overnight at one of the temples offering accommodation, which was an interesting way to get a more close-up view of life inside a Buddhist temple. Koyasan lies at an elevation of 800 meter above sea level. There's a cable car that leads from the nearest train station to the top.