¥41,500(税込) 〜 /泊
2泊目以降は1泊あたり¥5,000 OFF
At an elevation of nearly 1,000 meters, nestled deep within a forest of Japanese larch trees, the gentle rustling of the leaves and the soothing murmur of the stream flowing through the property create a tranquil soundscape. Each standalone guest room features a private open-air hot spring fed by the same natural source as the renowned Jippuku no Yu, along with a wood-fired sauna where you can enjoy self-pouring löyly at your own pace. Watch the water flow by and immerse yourself completely in the stillness of the forest. Relax both body and mind, and savor a luxurious escape far removed from everyday life.
Private Open-Air Hot Springs in Every Room
Each outdoor living space features a private open-air hot spring fed by the same alkaline spring source as Juppuku no Yu. Enjoy unlimited access throughout your stay, and pair it with the sauna while wearing swimwear.
Private Outdoor Saunas for Every Room
Every standalone room comes with its own private outdoor sauna. Warmed by wood and designed in the traditional Finnish style, it offers the freedom to enjoy self-pouring löyly whenever you wish. Immerse yourself in nature and discover the ultimate state of relaxation.
A Stay in Harmony with Stone, Water, and Forest
Each outdoor living space and open-air hot spring is uniquely designed to complement its natural surroundings. From the soothing garden and cascading waterfall of the Garden Side rooms to the private deck extending over the stream in River Deck, every retreat offers its own distinctive connection with nature.
A Hot Spring Retreat to Share with Your Beloved Pet
Earthboat is a truly pet-friendly retreat, where you and your companion can stay together every step of the way. With no restrictions on size, breed, or number of pets, they are welcome throughout the entire property—including the sauna area. Enjoy the hot springs and the beauty of nature with your cherished family member always by your side.
Savor the Flavors of the Region
Our optional breakfast features a curated selection of local favorites, created in collaboration with a beloved nearby hot spring destination. Throughout your stay, you can also stop by to enjoy meals, pick up ingredients, and discover the rich farm-to-table flavors that make this region so special.
Site Map
All cabins feature a private wood-fired sauna and outdoor hot spring bath. Pets are welcome.
・001〜006, 012 Forest Side
・007〜010 Garden Side
・011 River Deck
We will publish happy messages from guests.
¥41,500 (税込) 〜/泊
Surrounded by lush greenery, each room features a uniquely designed private outdoor area thoughtfully arranged to blend seamlessly with the surrounding landscape.
¥44,500 (税込) 〜/泊
Enjoy views of the beautifully landscaped garden and cascading waterfall from the room’s expansive windows and private open-air hot spring.
¥46,500 (税込) 〜/泊
An exclusive retreat with just one room, nestled among lush trees. Its outdoor living space features a private deck extending over the stream that flows through the property, offering an immersive connection with nature.
Here is a list of options available for stays at Ueda Onsen.
¥2,000
This option allows you to check in at 2:00 PM instead of the usual 3:00 PM.
¥2,000
Standard check-out is at 10:00 AM, but with this option, you can extend your stay until 11:00 AM.
¥3,000
This is an original set exclusive to Earthboat Ueda Onsen, featuring carefully crafted handmade bread baked at “Jippuku-no-Yu” and packed with the bountiful local produce.
Jippuku-no-Yu Handmade Bread (2 butter rolls, 2 croissants, 2 focaccias)
Aoyama Eggs (2)
Shinshu Taro Pork Sausages (1 pack of 3)
Fresh Salad (2)
¥4,980
Enjoy BBQ meats sourced from a local butcher shop and fresh local vegetables with “Oidare,” a signature sauce from Ueda, Shinshu, created exclusively by “Jippuku no Yu”. Enjoy cooking over a wood fire surrounded by nature.
200g beef harami, 200g beef tongue, 100g pork belly
Vegetable set
長野県上田市真田町傍陽9097-183
22 minutes by car from the Ueda-Sugadaira Interchange on the Joshin-Etsu Expressway
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Earthboat Co., Ltd., whose motto is “Nature Escape: The Great Outdoors for Everyone,” operates, manufactures, and sells “Earthboat,” a trailer-style lodging facility equipped with a sauna. Through “Earthboat”—a small boat drifting across the vast ocean that is Earth—the company provides opportunities for many people to immerse themselves in nature.
◼️ Guests Traveling with Pets All rooms are pet-friendly, with no restrictions on type, number, or size. Please review our Pet Policy before making your reservation. ◼️Guests Visiting During Winter Road conditions are expected to deteriorate due to snow accumulation and freezing starting in December. Please arrive in a four-wheel drive (4WD) vehicle equipped with studless tires.
Hotel 1
¥20000（税込）〜/泊
大自然の中で体験する薪を焚いて整うサウナと上質な温泉は非日常の世界で、癒やされること間違いなしです。家族連れにもおすすめの宿です。
2026/7/28ご宿泊