Urabandai
In February, we went for a final winter mountaineering trip, to Urabandai in Fukushima prefecture. Like everywhere in Tohoku, it's less developed than further south, which also meant less busy! We ended up going for three snow-shoeing expeditions; actually renting and returning the snow-shoes turned out to be our major logistical limitation -- nowhere opens early enough to get the gear in time for an early start!
Anyway, after much shopping around we found a very nice rental guy who agreed to rent us the night before (cash only please) and the next morning we got on the first shuttle bus to the ski resort at the bottom of Nishi Azuma, the first mountain.