Did you know that Hakone had hot springs (onsen)? They have hot springs and you (if you're Japanese) should come visit them: the show. Not that I believe the area needed more advertisement but hey, it apparently does. No volcanic action in this though!
Next to the aptly named Hakone-chan there is another weird mascot in this (from the Boxappy family) which I belive is just from one resort so my guess is they funded this.
A rather boring series featuring a set of bland characters and subpar animation.