
Our lookout bath and privately reservable open-air bath offer 100% naturally flowing spring water. You can rent out the lookout bath for private use from 11 p.m. All rooms are corner rooms with convenient facilities including a washbasin, bath, and a bidet toilet. Delight in the seasonal scenery of the mountains and the babbling of the river.




Free cancellation until 3/15/2026 2:59 p.m.(JST)
The largest snow resort in the Kanto region! This is a great plan that includes a lift ticket for Hunter Mountain. A 'room only' plan without meals, so you can enjoy your day to the fullest! Even after work! Check-in is fine until 10 PM Special Benefits for the Hunter Mountain Plan Benefit: Complimentary Hunter Mountain 1-day lift ticket for the number of adult guests (If you wish to receive the lift ticket before check-in, please contact us by phone) [Hot Springs] The panoramic baths are on the top floor, 7F! ! The private open-air bath is located on the 6th floor. Indulge in the luxury of 100% natural flowing onsen water from the Masudaya Hot Spring, gushing out from the center of the Masudaya building! Even with a late arrival, you can enjoy bathing all night until 9 AM! Private Hot Spring DAY Enjoy exclusive access to three natural hot spring baths: the 7th-floor panoramic baths (2 locations) and the 6th-floor open-air bath (normally charged), all for free! Natural Hot Spring 'Masudaya Onsen' Components Sodium-Calcium Chloride-Bicarbonate Spring (Hypotonic, Neutral, High-temperature) Rich in metasilicic acid, enjoy the hot springs that leave your skin moist and beautiful! [Masudaya's Location] Right in the heart of Shiobara Onsen town! 20 minutes by car to Hunter Mountain 15 minutes to the Nikko area 20 minutes to the Aizu area 30 minutes to the Nasu area 3 minutes by car to the convenience store (25 minutes on foot) [Hot Spring Drip Coffee] A unique experience possible only with Masudaya's drinkable source spring water! Please enjoy our hot spring coffee. Available from 8 AM until check-out in the 1st-floor lobby. [Notice] ・Bed-sharing w/guardian children are warmly welcomed, one child per adult. ・Check-in after 9:00 PM is available with the late check-in option (per room: 2,200 yen per hour) until 10:00 PM at the latest ・On the day of your stay, all the hot springs in our facility will be reserved for private use only. - The private open-air baths are located on the upper floors, and for safety reasons, they may not be available during thunderstorms, snowstorms, cold waves, etc.
Consumption tax (from 10/1/2019) (Per person per night) 10%
Bathing tax (from 4/1/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.

Free cancellation until 3/15/2026 2:59 p.m.(JST)
Perfect for customers who want to enjoy both meat and river fish! We'll prepare sukiyaki with our hotel's special dipping sauce made from drinkable hot spring water! Additionally, on the 【Private Onsen Day】, you can enjoy exclusive free access to three onsen baths: the 7th-floor panoramic baths (2 locations) and the 6th-floor open-air bath (normally charged)! Enjoy unlimited private access to our hotel's three proud 100% natural flowing hot spring baths to your heart's content♪ ◇◆Grade UP Plan◆◇ Your dinner includes seasonal river fish salt-grilled (normally 2,200 yen) and a small portion of seasonal river fish sashimi (normally 1,300 yen). Furthermore! Upgrade the Nikko Highland brand Wagyu beef from the usual 80g to 100g! ◇◆ 【Hot Springs】 The panoramic baths are on the top floor, 7F!!The private open-air bath (normally charged) is located on the 6th floor. Indulge in the luxury of 100% natural flowing onsen water from the Masudaya Hot Spring, gushing out from the center of the Masudaya building! You can enjoy bathing all night long from check-in to check-out! ◇◆ Natural Hot Spring 'Masudaya Onsen' Components ◆◇ Sodium-Calcium Chloride-Bicarbonate Spring (Hypotonic, Neutral, High-temperature) A high-temperature natural hot spring with a flow rate of 68 liters per minute and a spring temperature of 68°C, rich in metasilicic acid for smooth, hydrated, and beautiful skin, and retains heat well! ◇◆ [Dinner 18:00〜/18:15〜] <Dining Location> 2F Dining Room Table Seating <Dinner Details> A 14-dish countryside meal featuring Nikko Highland beef in sukiyaki, yuba, seasonal river fish, and locally grown vegetables to highlight the natural flavors of the ingredients. [Breakfast 8:00〜] <Dining Location> 2F Dining Room Table Seating <Breakfast Menu> Breakfast consists of 11 delicious dishes served in small portions. ◇◆ Soft-Boiled Onsen Egg ◆◇ The soft-boiled egg made with the source spring water from Masudaya's premises has a rich yolk and a mild salty flavor. ◇◆ ◇◆ Onsen Coffee ◆◇ A unique experience possible only with Masudaya's drinkable source spring water! Please enjoy our onsen coffee, drip-brewed with Masudaya's spring water. Available at the 1st-floor lobby from breakfast until check-out. ◇◆ 【Notice】 ・All ingredients used in our facility meet strict safety and quality standards. ・Bed-sharing w/guardian children are warmly welcomed, one child per adult. - The private open-air baths are located on the upper floors, and for safety reasons, they may not be available during thunderstorms, snowstorms, cold waves, etc. - On the day of your stay, all of the hot springs at our facility will be reserved exclusively for private use.
Consumption tax (from 10/1/2019) (Per person per night) 10%
Bathing tax (from 4/1/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.

Free cancellation until 3/15/2026 2:59 p.m.(JST)
The largest snow resort in the Kanto region! This is a great plan that includes a lift ticket for Hunter Mountain. [No Breakfast] You can immediately depart for Hunter Mountain, just 20 minutes by car from our facility. [Private Hot Spring DAY] Free private hot spring access! Hunter & Upgraded Grade Plan Benefits Benefit: All adult guests staying with us will receive a one-day lift ticket for Hunter Mountain as a gift (If you wish to receive the lift ticket before check-in, please contact us by phone). Your dinner includes seasonal river fish salt-grilled (normally 2,200 yen) and a small portion of seasonal river fish sashimi (normally 1,300 yen). Furthermore! ! Benefit: Currently upgrading the standard 80g portion of branded Nikko Highland Beef to 100g! [Hot Springs] The panoramic baths are on the top floor, 7F! ! The private open-air bath is located on the 6th floor. Indulge in the luxury of 100% natural flowing onsen water from the Masudaya Hot Spring, gushing out from the center of the Masudaya building! Enjoy exclusive access to three natural hot spring baths: the 7th-floor panoramic baths (2 locations) and the 6th-floor open-air bath (normally charged), all for free! You can bathe throughout the night from check-in until 9 AM! Natural Hot Spring 'Masudaya Onsen' Components Sodium-Calcium Chloride-Bicarbonate Spring (Hypotonic, Neutral, High-temperature) Rich in metasilicic acid, enjoy the hot springs that leave your skin moist and beautiful! [Dinner 18:00〜/18:15〜] <Dining Location> 2F Dining Room Table Seating <Dinner Details> [Brand Wagyu]A countryside-style hot spring Yukuguri hot pot featuring Nikko Highland Beef, along with countryside platters of 14 dishes including yuba (tofu skin), seasonal river fish, and local vegetables. Onsen Coffee A unique experience possible only with Masudaya's drinkable source spring water! Please enjoy our hot spring coffee. Breakfast is available from 8:00 AM until check-out in the 1st-floor lobby. [Notice] ・All ingredients used in our facility meet strict safety and quality standards. ・Bed-sharing w/guardian children are warmly welcomed, one child per adult. - The private open-air baths are located on the upper floors, and for safety reasons, they may not be available during thunderstorms, snowstorms, cold waves, etc. ・On the day of your stay, all the hot springs in our facility will be reserved for private use only.
Consumption tax (from 10/1/2019) (Per person per night) 10%
Bathing tax (from 4/1/1950) (Per person per night)¥150
* Excluded taxes and fees are approximated and may vary based on the property. They will be collected at the property at the time of check-in or check-out.
Standard Japanese room, Mountain view, Nightlife view, River view, Non-smoking (Japanese-style room facing the river [10 tatami + with engawa/12 tatami + with engawa])