Depending on the period, you may not have a plan. I think that there is almost no problem if it is off season or weekdays.

Please ask the inn or hot spring

You may book full. Please try to book from home just because the cancellation also there is also a possibility that has come out.

I can smoke

I think that it is a bit far away. But it is not a distance that I can not walk. Since there is a free bus service from the hotel until the main street where there is a stop-by, souvenir shop, meal etc., how about using it there?