The accommodations at the foot of Mt. Tokachi(dake) named "Hakuginsou"has a variety of hot spring bath tub on its premises. The hot spring for play named "Asobi-no-yu"is between the outside hot spring spa for male and female.
The couples can soak their bodies in the bath but they have to wear the swimming gears.
This is the small water slider and the pool under the slide. I've never seen the kids enjoying this slide so far. Is it mainly for adults?