Okumizuma Onsen

is a hot spring resort area sometimes called the “Retreat of Senshu.”

Enjoy a Secluded Stay in Nature at Okumizuma Onsen

In the foothills of Mt. Katsuragi, straddling the border with Wakayama Prefecture, lies Okumizuma Onsen, a hot spring resort area sometimes called the “Retreat of Senshu.” In addition to seasonal scenery like spring cherry blossom and fall leaves, visitors can experience a soak in a hot spring deep in the mountains. Perfect for a day visit, guests who stay the night will enjoy Japanese hospitality and luxurious accommodations that are sure to leave a lasting impression.

The Story of Okumizuma Onsen

Okumizuma Onsen is called the “Retreat of Senshu.”

The origins date back to 1953, where the location of the Okumizuma Onsen was just a field for crops deep in the mountains. The landowner, Mr. Okuno, was tending to his land during the winter and he spotted children playing in the rivers located next to nearby rice fields. He called out to them, asking the children whether they were cold, but they responded that they were quite warm playing in the waters during the winter months. He decided to investigate and indeed, the water was quite warm. A quality inspection revealed that natural hot spring water was bubbling through into the river.


Mr. Okuno decided to dig into his land and create a hot spring, but it was not initially used for tourism purposes. He originally created the onsen as a recreational center for retired soldiers, as well as the sick and injured. It was believed that the hot spring water infused into the river has healing properties, and was used by soldiers wounded in the Battle of Sekigahara—a decisive battle that would mark the end of decades of civil strife—in 1600.


Around 1955, the onsen was converted into a resort for tourism purposes. In subsequent years, it changed hands several times, and came to be called Okumizuma Onsen. After the Great Hanshin-Awaji Earthquake in 1995, the main building and the annex underwent a major renovation. They remain unchanged to this day.

Enjoy Outdoor Baths

Gaze upon a peaceful mountain stream in an outdoor bath.

At Okumizuma Onsen, the baths contain natural hot spring water pumped up from the ground below. The water itself is given the nickname Bijin-no-Yu, which literally means “spring of beauty,” because it is believed to provide beautifying effects on the skin of whoever bathes in the water. This is said to be a result of high concentrations of natural sodium found in the hot spring water. It is also believed to soothe ailments, such as recovery from fatigue, circulation problems, and chronic skin diseases.


The baths are separated by gender (and change depending on the day), and both include an indoor large public bath and an open-air bath overlooking the mountain stream. Guests who stay at the resort accommodation have unlimited access during its open hours as part of their stay. Visitors can visit the onsen for day-use if they wish. It is ¥1,100 per person for adults, and ¥660 for children up to 12 years old. Day-use of the baths is only available on weekdays. Shampoo, conditioner, and body soap are available at the baths. Lockers and various amenities are also available.


Stay the Night

Enjoy traditional Japanese-style rooms and a private Japanese garden complete with modern bathroom facilities.

The majority of the rooms at Okumizuma Onsen are laid out in a traditional format with tatami mat flooring. Futon are provided as bedding, but there is one room on the first floor with western-style beds. Bathing and showering facilities are shared by use of the onsen, and one room has a private open-air bath attached to it. The majority of the rooms overlook the mountains and the river passing by, and some overlook the garden in front of the building.

Enjoy mouth-watering, seasonal kaiseki meals.

Japanese kaiseki meals are offered to guests who have dinner included in their stay. This typically consists of a number of small dishes such as fresh sashimi, tempura, crab, a range of Senshu vegetables, and protein such as wagyu beef or local boar. Ingredients will depend on the season to ensure that the freshest food is served to the guests. Large groups can have their dinner in the party rooms, but small groups will be served dinner in their rooms.

Surrounding Sightseeing Spots

Mizumadera has a spiritual atmosphere.

There are plenty of exciting Senshu highlights to see near Okumizuma Onsen. One of the most famous sightseeing spots nearby is the Mizumadera, a temple which is home to a statue of the holy Kannon—the Buddhist deity of mercy who is also said to ward off natural disasters. It is a large temple complex with a history dating back to 744. Aizendo Temple, located just next to Mizuma Temple, is considered to be a lover’s sanctuary, where people go to make their marriage vows. There are also several nearby hiking routes to enjoy.


It is recommended that guests visit Okumizuma Onsen by rental car, especially there is a large parking space available on-site. For those arriving by public transport, alight at Mizuma-Kannon Station, served by the Mizuma Tetsudo Railways. From here, take the Harmony Community Bus (Yellow Line) to Okumizuma Onsen. Bus services are infrequent.


For Senshu tourist information inquiries, please contact the Senshu Japan Concierge Team.

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