The smell of sulfur hits you as you step off the bus at Noboribetsu Onsen — a sharp, volcanic reminder that you're standing above active geothermal systems that have been producing hot spring water for hundreds of years. This is Hokkaido's most celebrated onsen destination, and for good reason.
Jigokudani: Hell Valley
The centerpiece of Noboribetsu is Jigokudani (地獄谷) — a 450-meter-wide volcanic crater filled with bubbling, steaming geothermal pools in shades of gray, blue, and rust-red. Walking the boardwalk through the valley, sulfurous steam rising around you from vents in the gray earth, is a primal experience. The valley produces 10,000 tons of hot spring water daily. Lookout points around the valley edge provide views into the depths of the bubbling pools. Entry is free; the walk takes 20–40 minutes.
Eleven Types of Hot Spring Water
Noboribetsu is uniquely blessed — its springs produce 11 distinct types of mineral water, more variety than almost any other onsen resort in Japan. The main types include: sulfur spring (milky white, excellent for skin), sodium chloride spring (salty, warming), iron spring (rust-colored, metallic), alum spring (mildly acidic, good for muscle pain), and radium spring (weakly radioactive, believed stimulating to the nervous system). Premium ryokan and hotels incorporate multiple types across their bathing facilities.
Staying at a Ryokan
The main street of Noboribetsu Onsen is lined with ryokan and hotels ranging from budget to luxury. Most include dinner and breakfast in their rates and offer extensive bathing facilities. Daiichi Takimotokan is the famous landmark — its massive bathing complex includes 35 different baths across multiple floors, using the widest variety of spring types. Day trip bathing is available for ¥2,000–3,000 if you're not staying overnight.
Bears and Edo Period Village
Near Noboribetsu, two unusual attractions appeal to families. Noboribetsu Bear Park on the mountainside above the onsen town houses over 100 Hokkaido brown bears and offers entertaining shows. Noboribetsu Date Jidaimura is a theme park recreating Edo period Japan with ninja shows, period architecture, and costumed performers. Both are enjoyable if you're spending a full day in the area.
Getting There and Day Trips
Noboribetsu is 90 minutes from Sapporo by Limited Express Suzuran train (¥3,000, covered by JR Pass). A bus connects from Noboribetsu station to the onsen town (10 minutes). It's a popular day trip from Sapporo, though staying overnight provides the full ryokan experience. Combine with a visit to nearby Lake Toya (another volcanic lake with its own onsen resorts) for a 2-day Hokkaido volcano tour.
