Noboribetsu Onsen-cho, Noboribetsu, Hokkaido
Rating
Cost per person
Free
The Hiyoriyama Observatory offers a vantage point to view Oyunuma, a volcanic crater lake near Noboribetsu Onsen (hot spring). While some reviews mention that trees can obstruct the view of Oyunuma, a short walk from the observatory provides a clearer panorama of the geothermal landscape and the active Hiyoriyama volcano. The path to the observatory involves some steep slopes and stairs, requiring moderate physical fitness. It's a worthwhile stop for those exploring the Jigokudani (Hell Valley) and Oyunuma area, offering a unique perspective on the volcanic activity that feeds Noboribetsu's hot springs. Free parking is available, making it easily accessible by car.