The remote islands floating in the seas at Hokkaido's northern tip preserve the most authentic hot spring culture. Boarding the ferry from Wakkanai Port, with the sea breeze carrying views of the majestic Rishiri Fuji's silhouette—this island-hopping journey transcends mere geographic movement. It's a spiritual cleansing that returns to the very origins of onsen culture.
The Unique Charm of Island Hot Springs
Island hot springs are distinctly different from those on the main island. Instead of tour bus crowds, you have the rhythmic sound of ocean tides as your companion. The spring waters often carry a unique oceanic mineral flavor, and gazing at the starry sky while soaking in a seaside outdoor bath, feeling the tidal cadence, offers an experience impossible to replicate at mainland hotels. More importantly, island hot spring facilities may be modest in scale, but they often maintain the most traditional operations—the owner personally greets guests, and the cuisine served under the one-stay-two-meals plan uses the day's fresh catch, free from standardized service protocols yet filled with genuine warmth.
The islands' seasonal variations also add layers to the hot spring experience. Summer's lavender bloom and the aurora during drift ice season allow the same springs to present dramatically different atmospheres across seasons. Recent tensions in China-Japan relations have reduced mainland visitors by approximately 40%, inadvertently returning these remote island hot springs to their tranquil essence.
Recommended Island Hot Spring Experiences
Rishiri Island: A Hot Spring Miracle at 1,700 Meters Altitude
The hot springs at the foot of Rishiri Fuji feature sulfate spring waters with excellent skin-whitening effects. The family-run hot spring ryokans on the island mostly use source-direct flow systems (100% natural hot spring water) at approximately 42-45°C. We recommend soaking in the evening to enjoy both the sunset and the reflected image of Rishiri Fuji simultaneously. Most island hot spring facilities operate on a small scale, with average room rates around ¥15,000-25,000/night including breakfast and dinner.
Rebun Island: A Romantic Encounter of Flowers and Hot Springs
Known as the "Floating Island of Flowers," Rebun Island offers a unique landscape where hot springs blend with alpine plants. The northern spring area primarily features bicarbonate spring waters, which are gentle and especially suitable for extended soaking. During the flower season from June to August, you can gaze at entire flower fields from the hot springs—a hidden gem for photography enthusiasts. The island's traditional tatami-mat lodging hot spring minshuku emphasizes locally sourced cuisine, with fresh seafood like sea urchin and scallops delivered directly to your table.
Yagishiri Island: Healing Hot Springs in a Hidden Paradise
With a population of fewer than 300 people, Yagishiri Island boasts natural sulfur springs rare in Hokkaido. The island has only one hot spring facility, operating on a fully advance-reservation basis to ensure every guest can enjoy the tranquility of a private bath. The spring temperature is relatively high (approximately 47-50°C), requiring gradual adaptation, but the silky smooth skin effect after soaking is truly amazing. The island's hot spring ryokan also serves seafood cuisine, and its seasonal catch-focused kaiseki cuisine showcases island culinary culture.
Teuri Island: A Wonderful Coexistence of Sea Birds and Hot Springs
Renowned as a sea bird breeding ground, Teuri Island's hot spring facilities are built along cliffsides, allowing you to observe sea bird ecology while bathing. Most island hot springs are outdoor bath formats, and during spring and summer, you can hear sea birds' calls, creating a natural soundscape. The spring waters belong to the salt spring system and have a soothing effect on joint pain, making them especially popular among middle-aged and senior visitors.
Practical Transportation Information
Routes and Schedules
- Wakkanai Port → Rishiri Island (Otarappu Port): Approximately 1 hour 40 minutes, Regular fare ¥2,490
- Rishiri Island → Rebun Island (Kakafune Port): Approximately 45 minutes, ¥1,170
- Haboro Port → Yagishiri Island / Teuri Island: Approximately 1 hour 30 minutes, ¥1,810
Sailing schedules are affected by sea conditions, and some ferries may suspend operations from November to March. We recommend confirming the latest schedules in advance and allowing flexibility in your itinerary.
Island Transportation
Each island has circular bus routes, but services are limited. We recommend renting electric bicycles or small motorcycles to explore, which is both eco-friendly and allows for an in-depth experience of island scenery. Car rental services are available on Rishiri Island and Rebun Island, with regular cars approximately ¥5,000/day.
Accommodation Booking
Most island hot spring accommodations are small facilities with fewer than 10 guest rooms, and peak season (June-August) requires booking at least one month in advance. Regular weekday rates are approximately ¥12,000-20,000/person (including two meals), with weekends and holidays increasing by 20-30%.
Island-Hopping Hot Spring Tips
Best Time to Visit
Late May through mid-September offers the best season, with stable sea conditions and all hot spring facilities fully operational. July-August is the flower season peak, but also the most crowded time. For visitors who prefer a tranquil atmosphere, we recommend June or September.
Onsen Etiquette Reminder
Most island hot springs operate as mixed-gender or family-style facilities, so please pay special attention to Japanese onsen etiquette. Be sure to shower and cleanse your body before entering the bath, and avoid using shampoo or body wash in the hot spring. Island hot spring changing areas are typically smaller, so we recommend bringing compact toiletries.
Dining Experience Suggestions
Island cuisine features the day's fresh catch, and meal times are fixed and cannot be customized. Hokkaido seafood like sea urchin, scallops, and salmon roe tastes especially fresh when enjoyed on the islands. Vegetarian guests should inform the ryokan in advance, but options are relatively limited.
What to Bring
Island weather changes quickly, so please prepare windproof jackets and rain gear. Ultraviolet rays are strong in summer, making sunscreen essential. Island shop options are limited, so we recommend bringing personal medications and specialty supplies from the main island.
These hot spring islands floating on the Sea of Okhotsk offer the slow-paced living experience that modern people crave most. Here, time seems to return to the original form of hot spring culture—pure, simple, and in harmonious coexistence with nature.
