Oyado Yume no Yu

A small ryokan in Minamiaizu, near Aizu-Kogen station, with an indoor bath, an open-air bath and a dining room that serves local Aizu cooking. The inn says its water comes straight from the source and runs freely through the baths, and visitors mention a faint sulfur smell and a warmth that lasts after you leave. One reviewer noticed fine bubbles clinging to the skin. Day visitors are welcome, and it is a regular stop for people coming back from snowboarding. The building is plain and the mood is simple and local, so it suits a quick, honest soak more than a destination stay.