Sannokido is a nice winter Limestone area just west of Okutama. Featuring very "exciting" sport routes that will leave you questioning what really is a 5.10b. I recommend starting on the easiest routes here for your first trip due to the extreme sandbagging. If you are just starting on 10's bring a stick clip. Routes range from 10a to 12a, with four projects awaiting sends.
From Ome continue west on 411 to Okutama. There are two traffic lights in Okutama, just past the second light take the second right turn up the mountain(but not to the top). Follow this road to it's end. Keep in mind that after about 10 minutes the road forks, stay left here. If you go right you will go to the top of the mountain. From 411 it takes about 15 mins to the five car parking lot. Please do not block the narrow road. If there is not a parking spot please park at a lower parking location.