Hoshino Onsen

12 of 12 in Karuizawa

Hoshino Onsen (星野温泉) is a serene hot spring located at the heart of Hoshino Resort in Karuizawa. Guests can enjoy the soothing waters at the Tonbo no Yu (トンボの湯) public bathhouse, offering both indoor and outdoor pools in a tranquil, elegant setting. The bathhouse is gender-segregated, ensuring comfort and privacy for all visitors.

Just steps away is the renowned Hoshinoya Resort, a luxury hotel that also features its own hot spring baths. This upscale resort is the perfect place to unwind and rejuvenate, blending the natural beauty of Karuizawa with a world-class spa experience. Whether visiting the public bath or staying at Hoshinoya, the area offers a peaceful retreat for relaxation and well-being.

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Tonbo no Yu

Getting there

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To reach Hoshino Onsen from Karuizawa Station, take the Shinano Railway train to Naka-Karuizawa Station, which takes about 5 minutes and costs 230 yen. From Naka-Karuizawa Station, you can take a Seibu bus towards the Hoshino Resort, which takes about 15 minutes and costs 290 yen. Alternatively, you can take the town loop bus from Naka-Karuizawa Station, which operates every 1-2 hours and costs 200 yen. These options will easily take you to the relaxing Hoshino Onsen.