Mrs. Selfish and I are planning a quick trip to Japan next winter (Dec 2016). Since we can only spend 5 nights in Japan I was planning on 3 nights in Tokyo to time adjust followed by 2 nights in an onsen town.

We've already been to Hakone and Kurokawa Onsen town, and are looking to visit a new onsen town - preferably with a traditional feel. Unfortunately, most onsen towns I've researched looked like they like they are packed with modern, concrete hotels.

Can anyone recommend another onsen town with an old-timey vibe or are we SOL?