Julie Ketter

The Only Hotel in Iya Valley: Iyaonsen

Secluded Region – Iya Valley

Layered mountains extending in the distance. Iyaonsen is an excellent location for soaking up the beauty of Iya’s natural surroundings. A cable car takes guests down to the open-air bath at the bottom of the valley. Look out at the deep valley and the Iya River flowing below on the relaxing, approximately five-minute journey.

Hot Spring

Ride a cable car down to the open-air baths fed with hot spring water straight from the source. A cable car takes guests down to the open-air bath at the bottom of the valley.

Open-Air Baths


The chirping of little birds echoes from the depths of the forest, and the glossy green and jade of the river’s surface gently soothes your senses.

Open-Air Baths


Entrust yourbody to the clear spring water for a moment of bliss.Soft light plays on the water’s gently wavering surface.

Reservation Only Open-Air Bath


Beside the open-air bath for men and women, there is a private open-air bath that can be reserved for a fee.Here, guests can relax even more knowing that they will not be disturbed.

Large Bath Indoor Panorama Bath

The large bath is open 24 hours a day except for 1 hour between 10:30 AM and 11:30 AM when it is closed for cleaning.One for men and one for women.


Dine on the harvests of the season,grown right here in Iya.Wild mountain vegetables, sweetly fragrant river fish.Enjoy ingredients at their seasonal peaks.



Relax in the alkaline bathing lagoon and enjoy the scenery.

Bathing Lagoon

The water supplies for the lagoon run straight from the National Power Company´s bore hole in Bjarnarflag. The water has a temperature of about 130°C when it arrives to the huge basin beside the lagoon itself forming an impressive, man-made hot spring. Altogether, the lagoon and the basin contain around 3.5 million litres of water with a temperature of 36 – 40°C.

The lagoon itself is a man-made construction, its bottom is covered by sand and gravel. The characteristics of the water are unique in many ways. It contains a large amount of minerals, is alkaline and well suited for bathing. Due to its chemical composition, undesired bacteria and vegetation do not thrive in the lagoon making chloride or any other disinfectant redundant.

Geothermal water in Iceland usually contains some sulfur. In this area the strength of the chemical is greater than others. Therefore is should be avoided to take jewelry from brass or silver into the water, they become black and can be damaged. Sulphur, however, is considered to have a positive effect on asthma and other respiratory diseases, and many of the trace elements in the water are considered to have a good effect on the development of skin problems.


7   H E L L S   O F   B E P P U


maximum of sea hell Among Beppu hell, if you are the colors of cobalt blue, is the beauty of the more unworthy is that hell.

Blue pond, because iron sulfate is dissolved is a component in the hot springs. In the park, has been cultivating the Amazon region of origin of the Victoria Amazonica and tropical water lilies using the hot springs, the flowering period of the Victoria Amazonica and tropical water lily, in early May – late November, is the morning is full bloom.


Blood Pond Hell in the oldest natural hell in Japan, if say a word “pond of red heat mud”. Hot underground, iron oxide produced caused the spontaneous chemical reactions under high pressure, a red hot mud containing magnesium oxide or the like is ejected from the formation, ponds one surface dyed red to deposit.



geyser waterspout hell, which is designated as a natural monument of Beppu.Exciting the ejection was hot water, there is spewing power about but about 30m are stopped by a roof.


pond in the Japanese garden of calm atmosphere, it has a white bluish. This, when ejection is transparent hot water, when fell into the pond, in order to vary pale by lower temperature and pressure. More Shiraike, tropical fish hall and pirarucu Museum, toward rough of prefecture designated important cultural property, Kunisaki towers and, and the like “two Honangado” the local art are on display.


had become tourist facilities of the attractions as the Meiji later “Mud Hell,” but was OPEN to be once closed new as “Onishi Mud Hell”. That’s right how the gray of heat mud boils became from that resembles a shaved head as called “Onishi Mud Hell”.

The location is next to the sea hell. In the facility, there is also a “foot bath”.


had become tourist facilities of the attractions as the Meiji later “Mud Hell,” but was OPEN to be once closed new as “Onishi Mud Hell”. That’s right how the gray of heat mud boils became from that resembles a shaved head as called “Onishi Mud Hell”. The location is next to the sea hell. In the facility, there is also a “foot bath”.


one stove Hell of Hells of Beppu is, gush Atsushi Izumi of 90 degrees of hot springs with fumaroles. The festival of the stove

Shrine of the patron god from ancient times, it had been cooked the Goku Midnight Eye rice in hell of fumaroles from its name. Kamado is hell there is a pond of a variety of hot water to 1-chome to 6-chome.


One of Japan’s best three hot springs


Located about 200 kilometers north-northwest of Tokyo, Kusatsu Onsen is a small town nestled in mountains where visitors can experience nature all year round.

Although its population is only around 7,000, it welcomes some three million tourists every year. Click here for detailed

information on Kusatsu Hot Spring, one Japan’s best three hot springs found in the center of the town of Kusatsu.


Acidic spring water containing sulfur, aluminum sulfate and chloride


Relief of neuralgia, muscular and arthritic pain, skin ailments, stiff shoulders, bruises, sprains, chronic fatigue, chronic women’s diseases, diabetes, high blood pressure and hardening of the arteries; promotion of general health and convalescence, etc.


The yubatake is the symbol of Kusatsu. Here, hot water from the spring’s origin gushes down wooden channels made from five-centimeter thick pinewood still containing large amounts of resin. Fine quality pinewood or Japanese cypress rich in resin is the optimum choice of material to continuously withstand acidic spring water. This is why many inns still have old, wooden bathtubs made of similar materials. Thus, the quality of Kusatsu’s spring water also serves to create a typically rustic hot spring atmosphere.


Kusatsu Onsen boasts the largest natural output of any hot spring in Japan.Trails of steam seen rising into the air all over the town enhance any traveler’s experience. Let’s take a look at this incredible amount of water that enables the continuous flow of the natural hot spring.Kusatsu Onsen is rightfully proud of both the quality and quantity of its waters.

Unmatched Quality and Quantity

In Kusatsu, more than 32,000 liters of spring water gush out every minute – the equivalent of some 230,000 barrels per day. The spring’s source is Mt. Shirane, an active volcano. This makes it possible for all Japanese style inns, hotels and spa facilities in Kusatsu Onsen to continuously provide their guests with spring water that doesn’t need to be reheated, diluted or otherwise adjusted. This lavish amount of water allows visitors to have a luxuriously sensational experience.

Fruits of the plentiful waters

Yubatake – “a field of hot water” – is the symbol of Kusatsu. Here, something called yu-no-hana (literally “sulfur flowers” or mineral salts) is formed when the massive quantities of spring water are exposed to the air. This natural bath salt is removed from wooden tubs four times a year while the water flow is temporarily halted. Carefully removed by hand, the bath salts are packaged in cone-shaped containers, whose annual production totals only seven to eight thousand.


At this traditional bathhouse, visitors can see demonstrations of yumomi and traditional dance done to a local folk song. A few members of the audience will be selected to try yumomi and will receive a certificate and complimentary gift. In the evening, traditional ”rakugo” comic storytelling performances are give here.

The hot springs in Kusatsu are put to various uses. In order to lower the temperature of the scalding hot Bandai hot spring to a temperature suited to bathing without diluting the water, a heat exchanger is used to pour cold tap water on the pipe through which the spring water flows. The tap water, which rises in temperature during the process, is then used to melt snow on roads and is supplied as hot water to Japanese style inns and private homes.

Another example is spring water that flows into the Yukawa River, which is neutralized with natural coal to maintain an environment suitable for fish. These are all facets of Kusatsu’s philosophy of “onsenism,” principles to maintain the quality of our hot springs.



Adventure into the ever-changing natural surroundings of Kusatsu in the winter!

Experience the untouched wonders of nature on this course, which gives participants a chance to enjoy the thrill of skiing as it was original done.


Situated on the west side of Kusatsu, this huge area has numerous wells from which hot water springs out to form a flowing river of hot water amongst large clouds of steam. Legend says a demon lives here, and visitors should not speak loudly or the demon will appear.