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SPA
Feel the nature of four seasons
in our outdoor hot spring baths.

There are a number of hot springs in Japan that claim themselves
"Gensen Kakenagasi*", but real ones are rare.
Seiunso is one of the few hot springs that meet tough Gensen
Kakenagashi conditions. Please enjoy our high quality hot spring water.

Outdoor hot spring baths
Large Bath
Private Bath
Kojigoku Onsen
STAY
Bright and sophisticated guestrooms
surrounded by great nature.

All guestrooms are universal design.
Rooms are spacious and well equipped.
Equipped with free Wi-Fi, air purifier/humidifier..

Premium Twin
Premium Twin (36㎡)

It is a bright Western-style room with gentle sunlight shining through the window.
Please spend a blissful time in a higher-grade, high-quality space.
Special Twin
Special Twin (39㎡)

With a combination of a relaxing tatami space and a “fluffy bed”
This is a room where you can spend your time comfortably.
Japanese Stylish
Japanese Stylish (33㎡)

Equipped with 2 low beds on Ryukyu tatami mats, this room combines the “relaxation” of a Japanese-style room with the “comfort” of a Western-style room.
Japanese Superior
Japanese Superior (39㎡)

Three low beds were installed on Ryukyu tatami mats,This room combines the “relaxation” of a Japanese-style room with the “comfort” of a Western-style room.
Japanese Traditional
Japanese Traditional (33㎡・39㎡)

Family and friends can relax in this bright, clean, and sophisticated room with tatami flooring.
Standard Twin
Standard Twin (24㎡)

Two spacious semi-double beds are installed.This room has a bright and calm atmosphere, taking advantage of the warmth of wood.
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RESTAURANT
Fine cuisine in a relaxing atmosphere.
Enjoy dishes made of regional ingredients from the land and sea.
Menu introduction
Restaurant Amaryllis

Next to inner baths. There are tatami space and chair space to let hot spring users rest after bathing. Food and drinks are served. Shochu can be ordered by bottles. Enjoy tasty drinks after hot springs.

Dining Edelweiss

A dining room to serve 200 people breakfast and dinner. Please show up by 8:50 for breakfast.
There may be a case that the room is seperated into two section for group tours.
Banquet Rooms

There are six banquet rooms of various sizes that can be used for any type of parties.

STAY PLAN

[Golden Week] ~ GW is a bath at a natural hot spring ~ GW special banquet plan

Unzen colored kaiseki meal using seasonal ingredients

Enjoy the original “umami” of meat! Nagasaki wagyu raised by the nature of Nagasaki and seasonal kaiseki

Recommended by the head chef! Seasonal Special Kaiseki Meal Plan

[Early reservation plan up to 60 days in advance] Unzen colorful kaiseki

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Access
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RESERVE

500-1 Unzen, Obama Town, Unzen City, Nagasaki Prefecture 854-0621 Japan

Check in 3 p.m. / Check out 10 a.m.

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