I'd sure like to stay here someday.

I hear you.

Staying the night would be out of the question, but couldn't we do a bath-only stay?

Let's look it up.

Groups of 10 or more may use the baths if they go for our meals-included course.

The Wakura Hot Spring public baths... I.e., those outside the resort proper

They're pretty darned strict...

Well, what are you going to do?