For people that are just passing through the valley, I offer Shinrin Yoku sessions.
3-hour mindfull walk or a full-day session including lunch in nature. Depending on the season and the program, the afternoon ends with a bath in a rotenburo ( 露天風呂 Japanese outdoor bath) or a dip into a pristine river for the hotter days.

Read more about Shinrin-Yoku benefits here.