Fukiage Onsen (吹上温泉)

Fukiage Onsen: Central Hokkaido’s High-Altitude Wild Bath and Volcanic Alpine Sanctuary

Perched at an elevation of over 1,000 meters on the rugged slopes of the active Mount Tokachi, Fukiage Onsen is a destination for those who crave the raw, unadulterated power of the earth. Known throughout Japan as the filming location for the legendary TV drama “Kita no Kuni kara,” this hot spring resort is defined by its dramatic alpine scenery and its status as one of Hokkaido’s most iconic “secret” baths. Unlike the manicured resorts of the lowlands, Fukiage offers a primitive, atmospheric experience where the steam of the volcanic earth meets the sub-arctic chill of the Daisetsuzan National Park. Whether you are seeking a restorative soak in the completely wild “Fukiage Open-Air Bath” surrounded by primary forest or using the high-quality facility at Hakuginsou as a base for winter backcountry skiing, Fukiage provides a sense of liberation and scale that is unique to the “Roof of Hokkaido.”

Key Information

The Healing Waters: Acidic Potency and “Heat Restoration” Science

The thermal waters of Fukiage gush from the subterranean magma chambers of the Tokachi Volcanic Group. Scientifically classified as acidic calcium/sodium-sulfate springs, the water is transparent but carries a strong mineral complexity. The low pH level provides a natural “peeling” effect, effectively killing harmful bacteria on the skin and promoting cellular renewal—a quality that has made it a favorite for “Toji” (therapeutic) treatments for over a century. The high sulfate content also aids in dilating peripheral blood vessels, improving circulation and warming the body from the core, which is essential for survival in the sub-zero winters of central Hokkaido. The water gushes from the source at temperatures between 45°C and 55°C and is used in a “Gensen Kakenagashi” (100% natural flow) style, ensuring that the minerals remain in their most bioactive and effective state.

Top Recommended Stays & Bases

• Fukiage Onsen Hoyo Center Hakuginsou (Flagship/Adventure): A high-quality public facility that offers both dormitory and private room stays. It features a massive indoor/outdoor bath complex and a sauna. It is internationally famous as a “basecamp” for backcountry skiers and hikers.
• Tokachidake Onsen Ryounkaku (Nearby Peak): Located just a few kilometers higher up the mountain, this historic inn offers the highest elevation baths in Hokkaido and serving as an alternative base for mountain climbers.
• Kamihorosou (Nature/Heritage): A welcoming lodge known for its all-wood interior and its focus on local Kamifurano vegetable and pork cuisine.
• Furano City Hotels (Urban Base): Staying in central Furano allows for a 45-minute day-trip to Fukiage while enjoying the city’s diverse dining and shopping options.
Highland Furano (Value/Resort): Located at the base of the mountains, offering a blend of resort amenities and easy access to the lavender fields of the valley.

Must-Visit Public Baths (Soto-yu)

The absolute highlight of Fukiage is the Fukiage Rotenburo (Wild Open-Air Bath). Located a short 5-minute walk into the forest from the parking lot, this is a free public bath maintained by the local community. It consists of two natural stone pools in the middle of the woods, with hot water cascading down a small waterfall. This is one of the few places in Japan where swimsuits are permitted (and highly recommended for tourists), as the bath is mixed-gender and completely open to the public. For a more refined experience, Hakuginsou offers access to its extensive baths for approximately 700 yen, featuring a unique “mixed-gender pool area” where families can enjoy the hot spring together in swimwear.

Walking Guide & Scenic Spots

Exploration on foot is essential to appreciate the scale of the volcano. Start at the Tokachidake Bogakudai Observation Tower; the 15-minute trail leads to a panoramic view of the vast lava fields and the smoking crater of Mount Tokachi. For serious hikers, the Ansei Crater Trail offers a 3-hour round trip into the very heart of the volcanic activity. In late September, this area becomes a sea of fiery reds and golds as the earliest autumn foliage in Japan arrives. In winter, the **Fukiage Snowshoe Trail** allows visitors to walk through a silent world of “Snow Monsters” (rime ice) and witness the dramatic contrast between the frozen forest and the steaming springs.

Local Gastronomy & Souvenirs

Kamifurano is famous for its “Lavender Pork” (Kamifu Pork). This meat is prized for its fine texture and sweet fat—try it as a “Pork Bowl” (Butadon) or grilled over charcoal. Another local specialty is Lily Bulbs (Yurine), often served as tempura. For souvenirs, look for Tokachidake Volcanic Ash Soap and local Furano Wine. The nearby Roadside Station “Michi-no-Eki Star Plaza Ashibetsu” also sells unique regional crafts and dairy products that represent the best of the central Hokkaido highlands.

Cultural & Historical Context

The history of Fukiage is defined by its role as a frontier outpost. Discovered in the early Meiji era, the springs served as a vital site for sulfur mining before evolving into a mountaineer’s retreat. The area’s identity was permanently reshaped by the 1926 eruption of Mt. Tokachi, which created the “White Birch Corridor” leading up to the springs. Today, Fukiage is a symbol of “Resilient Wellness,” where the community continues to coexist with one of Japan’s most active volcanoes, treating the earth’s heat as both a challenge and a sacred gift of healing.

Practical Travel Tips

• Transportation: The Kamifurano town bus runs only three times a day; advance checking of the schedule is mandatory. A rental car is the most efficient way to visit.
• Tattoos: The wild Fukiage Rotenburo is completely tattoo-friendly. For the public Hakuginsou facility, large tattoos should be discussed with staff, though they are generally accommodating to international visitors.
• Winter Gear: The road to Fukiage is steep and frequently icy; ensure you have 4WD and experience with winter driving if visiting between December and March.
• Cash: The town bus and local stalls are strictly Cash Only; ensure you have Japanese Yen before leaving central Furano.

2025-2026 Latest Updates

In May 2026, the region will commemorate the **Centennial of the 1926 Mt. Tokachi Eruption** with special educational tours and disaster-prevention exhibitions at the Bogakudai center. Additionally, **Hakuginsou** has recently expanded its “Workation” facilities for 2025, offering new high-speed Wi-Fi zones for digital nomads who wish to stay long-term while enjoying the high-altitude springs.

Safety & Manners

When using the wild Fukiage Rotenburo, please remember that it is a natural site—there are no showers or soap allowed. Always pack out all trash to protect the Daisetsuzan ecosystem. Mt. Tokachi is a monitored volcano; if you hear the emergency sirens, follow the instructions of the local rangers immediately. Finally, maintain a quiet and respectful tone in the baths to honor the silence of the primary forest.