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Maruyama Onsen Hotel Kojoukan
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Ryokans in Niigata

Maruyama Onsen Hotel Kojoukan

丸山温泉 古城館

Niigata onsen ryokan — In snow country Minami-Uonuma, a 100-year-old earthen cave open-air bath

★ 3.5TrustYou 95/100 · 672 reviews|MinamiuonumaFrom ₩319,359 / night (2 adults)
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PHOTOS

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ABOUT

About this ryokan

♨️In snow country Minami-Uonuma, a 100-year-old earthen cave open-air bath

Niigata · Maruyama Onsen Hotel Kojoukan

A Hot Spring Wrapped in a 100-Year-Old Earthen Cave
1

A Hot Spring Wrapped in a 100-Year-Old Earthen Cave

  • ♨️Niigata Prefecture's first — a 100-year-old earthen cave converted into the open-air bath 'Kurabocha'
  • 🛁'Ishibocha,' named for Ishiuchi, uses local stone and hinoki cypress
  • 🌡️Sodium chloride spring at 62.8°C source temperature, clear and colorless, circulated
A Rooftop Open-Air Bath Under a Sky Full of Stars
2

A Rooftop Open-Air Bath Under a Sky Full of Stars

  • 🌟The rooftop private open-air bath 'Hoshibocha' offers the mountains and night sky all to yourself
  • 🏔️Take in the surrounding mountain ranges with an open, expansive feel
  • 🤫Reserve it privately for a quiet bath under the stars
Ishibocha, Filled With the Scent of Hinoki
3

Ishibocha, Filled With the Scent of Hinoki

  • 🌲An artisan-built indoor hinoki bath with a latticed ceiling
  • 🪨The open-air tub is made with stone straight from Ishiuchi
  • 😌An onsen said to ease fatigue, muscle and joint pain, and poor circulation
All-You-Can-Eat Koshihikari
4

All-You-Can-Eat Koshihikari

  • 🍚All-you-can-eat home-grown Koshihikari rice from Minami-Uonuma
  • 🥬A rustic kaiseki featuring Minami-Uonuma mountain vegetables and seafood from off Sado Island
  • 🍶The owner is a certified sake sommelier (kikizake-shi) — pair your meal with local Echigo-Uonuma sake
Seasonal Mountain and Sea Delicacies
5

Seasonal Mountain and Sea Delicacies

  • 🦀Seasonal seafood such as beni-zuwai crab from off Sado Island
  • 🐖Echigo mochibuta (glutinous pork) from the local Yamada Farm
  • 🍄In autumn, freshly harvested Koshihikari paired with wild mushroom dishes
A Pet-Friendly Retreat Amid Nature
6

A Pet-Friendly Retreat Amid Nature

  • 🐕Pet-friendly rooms complete with a dog run
  • ⛷️About a 10-minute drive to ski resorts like Ishiuchi Maruyama and Kagura Yuzawa
  • 🏨A 17-room hot spring ryokan founded over 60 years ago, embracing nature through all four seasons
Rooms
7

Rooms

  • 🛏️Junior suite Room 103 (Japanese-Western style), 63㎡, with its own open-air hot spring bath
  • 🎍A connected 14–20 mat tatami room with mountain views
  • 🪟Twin Western rooms with Simmons beds and tatami Japanese rooms, all with mountain views
Location and Access
8

Location and Access

  • 🚉About a 10-minute walk from JR Joetsu Line's Ishiuchi Station
  • 🏔️Within 10 minutes by car of Naeba and Kagura ski resorts
  • 🌾A quiet hot spring town surrounded by the vast nature of Minami-Uonuma

A place where a 100-year-old earthen cave open-air bath, a rooftop hot spring under a sky full of stars, and home-grown Koshihikari rice await. A cozy hot spring ryokan where you and your pet can fully experience the four seasons of Niigata's snow country.

#MaruyamaOnsen#Kojoukan#NiigataOnsen#MinamiUonuma#Koshihikari#PetFriendly#OpenAirBath#Ishiuchi
Read the property's own description▾
Property Location With a stay at Maruyama Onsen Kojyokan in Minamiuonuma, you'll be within a 10-minute drive of Naeba Ski Resort and Maiko Snow Resort. This ski ryokan is 3.5 mi (5.7 km) from Gala Yuzawa and 1.5 mi (2.4 km) from Ishiuchi Maruyama Ski Resort. Rooms Make yourself at home in one of the 17 air-conditioned rooms featuring refrigerators and flat-screen televisions. Complimentary wirele…Read more ↓

Property Location With a stay at Maruyama Onsen Kojyokan in Minamiuonuma, you'll be within a 10-minute drive of Naeba Ski Resort and Maiko Snow Resort. This ski ryokan is 3.5 mi (5.7 km) from Gala Yuzawa and 1.5 mi (2.4 km) from Ishiuchi Maruyama Ski Resort. Rooms Make yourself at home in one of the 17 air-conditioned rooms featuring refrigerators and flat-screen televisions. Complimentary wireless Internet access keeps you connected, and satellite programming is available for your entertainment. Bathrooms have complimentary toiletries and bidets. Conveniences include safes and desks, and housekeeping is provided daily. Amenities After a day on the slopes, enjoy recreational amenities, which include hot springs. Additional features at this ryokan include complimentary wireless Internet access and ski storage. You'll be on the slopes in no time with the complimentary ski shuttle. Dining Enjoy a satisfying meal at Koshihikari serving guests of Maruyama Onsen Kojyokan. Full breakfasts are available daily from 7:30 AM to 9 AM for a fee. Business, Other Amenities The front desk is staffed during limited hours. Free self parking is available onsite.

* This description is the property's own text, in English.

* This introduction was compiled from information published by each property (official website and similar sources), so some details may differ from what you find on the day. It is AI-assisted and can contain errors — please check the official website and the details shown at booking before you reserve.

GUIDE

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From onsen etiquette to check-in — the things worth knowing first.

♨️ Onsen bathing etiquette🩹 Onsen with tattoos?✅ First-timer checklistAll guides →

ROOMS

Available rooms

FACILITIES

Facilities & Services

  • 주차장
  • 객실 내 금고
  • 에어컨
  • 레스토랑
  • 객실 초고속 인터넷

FAQ

Frequently asked questions

What are the check-in and check-out times at Maruyama Onsen Hotel Kojoukan?
Check-in starts at 15:00 and check-out is by 10:00.
Where is Maruyama Onsen Hotel Kojoukan located?
It is in Niigata Minamiuonuma. Address: 1873 Ishiuchi.
How much does one night cost?
Recent lowest observed rate starts from ₩319,359 per night for two adults. Rates vary by date and room type, so a live search is most accurate.
What is the cancellation and refund policy?
Free-cancellation deadlines vary by rate plan and are shown with each room. Cancelling before the deadline gives a full refund.

Traveler ratings

TrustYou
95/100

672 reviews

Check-in / Check-out

Check-in

15:00

From 15:00

Check-out

10:00

Until 10:00

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Company: Diplat Laps Co., Ltd.
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