The eight hot springs are Beppu, Kannawa, Myoban, Kankaiji, Kamegawa, Shibaishi, Hotta and Hamawaki. The symbol of this tour is the 9 hells.

■ Five-star accommodation
Oniyama Hotel, Hotel Shiragiku, Suginoi Hotel, AMANE RESORT SEIKAI

The hot springs contain iron and turn brown when exposed to air, giving them excellent heat retention and antibacterial properties, while the silver springs are colorless and transparent.

■ Five-star accommodation
Kinzan , Hyoe Koyokaku , Arima Grand Hotel, Nakanobo Zuien

The amount of natural water that gushes out from the source in Jigokudani is an astounding 10,000 tons per day. There are 11 different types of spring water, which makes it a hot spring department store.

■ Five-star accommodation
Takinoya Noboribetsu Onsen , Iwai no Yado Hotel, Watchtower NOGUCHI Noboribetsu , Takimotokan

There are around 800 hot springs in various places in the city. It boasts an abundant amount of hot water, about 120,000 tons per day. The sand bath is a specialty.

■ Five-star accommodation
Ibusuki Shusuien , Ibusuki Hakusuikan

A general term for hot spring areas in Hakone, Ashigarashimo District, Kanagawa Prefecture. Currently, it is a major hot spring area with 20 hot springs.

■ Five-star accommodation
Gorahanaougi Madokano-mori , Hakone Kowakien Ten-yu , Tenseien , Hotel Kajikaso , Gora Kadan, Tokinoyu Setsugetsuka, Hakone Ginyu, Fujiya Hotel

An ancient hot spring that springs up near the mouth of the Maruyama River in northern Hyogo Prefecture. There are a number of historic outdoor baths, including the oldest bath, Ko-no-yu.

■ Five-star accommodation
Nishimuraya Honkan, Nishumuraya Hotel Shogetsutei

Hot springs gush forth from various places at the foot of Mt. Yufu. The spring quality is simple spring water. There are about 900 hot springs, and the amount of water discharged is the third largest in Japan.

■ Five-star accommodation
Kamenoi Bessou, Yufuin Tamanoyu

About 20 inns line both sides of the valley, forming a uniform townscape. There are six types of spring water. Visiting the different hot springs using a ticket is popular.

■ Five-star accommodation
Yusai, Kurokawaso, Yamamizuki

The best sea hot spring in the Hokuriku region. The amount of water that flows out is about 2,918 tons per day, and the spring temperature is about 90 degrees, so it is characterized by its high temperature and slightly salty taste.

■ Five-star accommodation
Kagaya , Aenokaze , Kagaya's Villa Matsuno Midori , Japanese Inn Notoraku , Biwanso

This hot spring area boasts a history of over 1,500 years. Inland areas have many sulfate springs, but due to the influence of seawater, there are also many chloride springs.

■ Five-star accommodation
Atami Bay Resort Korakuen , Furuya Ryokan

The night streets lined with gas lamps exude a Taisho-era romantic atmosphere, making it very popular. The hot spring water is milky white.

■ Five-star accommodation
Ginzanso

Shin Hirayu Onsen, which has the atmosphere of a hidden hot spring, is located almost in the center of the Oku-Hida Onsen area and is the largest of its kind.

■ Five-star accommodation
Okuhida Garden Hotel Yakedake , Shin Hotaka Onsen Yama no Hotel

The brown sulfate spring is the golden spring known as the "fertility spring." The transparent spring containing metasilicic acid is the silver spring.

■ Five-star accommodation
Fukuichi, Kishigon Ryokan

Many of the inns boast an abundant supply of hot water and offer it directly from their own source. The spring quality is a highly acidic sulfurous spring, which is rare across Japan.

■ Five-star accommodation
Zao Kokusai Hotel , Miyamaso Takamiya Ryokan

It was recorded in the Izumo Fudoki as "God's Hot Spring" 1,300 years ago. The hot spring town along the Tamayu River is full of emotion.

■ Five-star accommodation
Kasuien Minami , Hotel Gyokusen

A hot spring resort located at an altitude of about 1,800 meters. The hot springs have a daily output of 5.4 million liters. They boast one of the highest sulfur contents in Japan.

■ Five-star accommodation
Manza Onsen Nisshinkan

There are hot springs with different spring qualities, such as sulfur springs, hydrogen sulfide springs, simple springs, sodium bicarbonate springs, and radium springs.

■ Five-star accommodation
Tsurunoyu Onsen

The spring water is a sulfur-containing sodium chloride spring, and is popular among many women as a "beauty bath" that leaves the skin smooth.

■ Five-star accommodation
Hotel Seifuen , Shiratama no Yu Senkei, Shiratama no Yu Kahou

This is a rare moor hot spring, even on a global scale. The hot water bubbles up through ancient plants (lignite layers) deposited underground.

■ Five-star accommodation
Tokachigawa Onsen Daiichi Hotel, Sanyokan, Kangetsuen

This hot spring area spreads across the Kinugawa Valley. The hot springs were discovered during the Edo period, and only people of high rank were allowed to bathe there.

■ Five-star accommodation
Asaya , Kinugawa Grand Hotel Yume no Toki , Kinugawa Onsen Hotel , Kinugawa Kanaya Hotel

Located on the outskirts of Hakodate City, this is one of Hokkaido's three major hot spring resorts. The water is smooth to the touch and has a reputation for not cooling down easily after a bath.

■ Five-star accommodation
Watchtower NOGUCHI Hakodate , Yunokawa Princehotel Nagisatei

The hot spring water, one of the best in Kyushu, is smooth and beautiful on the skin. As it is a tea producing region, there are also inns where you can enjoy tea baths.

■ Five-star accommodation
Taishoya, Wataya Besso, Bansyoukaku Shikishima

A variety of lodgings are lined up around Shirarahama Beach, which is lined with the sunny sands of Sugar Beach.

■ Five-star accommodation
Musashi , Shiraraso Grand Hotel, SHIRAHAMA KEY TERRACE HOTEL SEAMORE

This is the oldest hot spring in Miyagi Prefecture, with 1,500 years of history. It is called "Natori no Miya" (Natori Imperial Hot Spring) due to the legend related to Emperor Kinmei.

■ Five-star accommodation
Hotel Sakan, Saryou Souen, Hotel New Mitoya, Kagaribi no Yu Ryokusuitei

It boasts 9 of the 10 types of hot springs found in Japan, with over 370 springs. Many of the inns offer natural hot spring water.

■ Five-star accommodation
Naruko Hotel, Naruko Kankou Hotel

A hot spring town quietly nestled around the clear streams of the Otozure River and the Daineiji River. The oldest hot spring in Yamaguchi Prefecture is the temple bath at Daineiji Temple.

■ Five-star accommodation
Otanisanso , Bettei Otozure

This hot spring springs up in the valley of Mount Kurodake in the Daisetsu mountain range, the roof of Hokkaido. The water is clear and colorless, and is gentle on the skin.

■ Five-star accommodations: Hotel Daisetsu ONSEN & CACYON RESORT, Sounkaku Mountain Resort 1923

It all began in 1883 when a farmer dug an irrigation well and discovered that hot spring water at about 80 degrees gushed forth.

■ Five-star accommodation
Hotel Matuyasensen , Grandia Hosen , Tsuruya, Mimatsu, Seifuso

The spring water is a simple hydrogen sulfide spring that turns milky white when exposed to air. It is drinkable and has the effect of regulating gastrointestinal function.

■ Five-star accommodation
Shirafune Grand Hotel, Yumoto Saito Ryokan, Awanoyu

The most famous hot spring in the Ina Valley. The high temperature of the water has many beneficial effects for both bathing and drinking. The viscous water is famous for its beauty benefits.

■ Five-star accommodation
Hirugami Grand Hotel Tenshin , Yurui no Yado Keizan

They are concentrated near Tsukimi Bridge and Takayama Bridge on the Toyohira River. Abundant hot spring water naturally gushes out from cracks in the bedrock on the banks and at the bottom of the river.

■ Five-star accommodation
Jozankei Manseikaku Hotel Milione , Shika no Yu, Jozankei View Hotel

The spring contains sulfur, and depending on the concentration of the sulfur, the water can be either cloudy or nearly clear.

■ Five-star accommodation
Kirishima Hotel

The long-established inns, with their red lattice windows, lacquered pillars and lanterns, surround the old public bath and are filled with old-fashioned charm.

■ Five-star accommodation
Yunokuni Tensho , Rurikoh, Hatori, Tachibana Shikitei

This hot spring resort area, designated as a national park, has developed as a resort for foreigners. The hot springs are a gift from the earth, a sulfurous spring.

■ Five-star accommodation
Yuyado Unzen Shinyu , Unzen Fukudaya , Unzen Miyazaki Ryokan, Azumaen

This hot spring resort is located on a hill overlooking Ishikari Bay, and Ginrinso is the only lodging facility located in the scenic spot on the hill of Hiraiso Cape.

A hot spring resort overlooking Mount Kinka, where Gifu Castle stands, and the Nagara River, one of Japan's 100 famous waters. Cormorant fishing is a seasonal feature of summer in Gifu.

■ Five-star accommodation
Juhachiro , Hotel Park

Twelve hot springs are dotted around the Ou Mountains. One of them, Hanamaki Onsen, is the leading hot spring resort in the northern Tohoku region.

■ Five-star accommodation
Osawa Onsen Sansuikaku , Yunomori Hotel Shidohira, Kashoen, Musubi no Yado Airinkan, Yukaen

The symbol of the hot spring town is the cypress-built Korogi Bridge. The hot spring water is abundant and has a smooth texture that makes it feel smooth on the skin.

■ Five-star accommodation
Hanamurasaki, Kayotei

This hot spring resort is lined with inns along the Tone River valley that flows at the foot of Mt. Tanigawa. The water is clear and colorless.

■ Five-star accommodation
Matsunoi Gensen Yunoyado , Bettei Senjuan , and Ryokan Tanigawa

A hot spring resort beloved by the haiku poet Kobayashi Issa. It is famous for the "evil-warding outdoor bath tour" where you stroll through the cobblestoned hot spring town.

■ Five-star accommodation
Issa no Komichi Biyu no Yado and a Rekishi no Yado Kanaguya

There are a total of 42 hot springs, 39 of which are natural springs. The clear, colorless, tasteless and odorless water is popular for its skin-beautifying properties.

■ Five-star accommodation
Shima Tamura, Shima Yamaguchikan

This hot spring area was brought about by the eruption of Mt. Usu in 1910. The blessing from the volcano is a cloudy chloride spring.

■ Five-star accommodation
Toyako Manseikaku Hotel Lake side terrace , The Lake View TOYA Nonokaze Resort,

The first Japanese Heritage Site. The world's leading radioactive springs, containing high concentrations of radon, activate the immune system and the body's natural healing powers.

A hot spring resort with many inns lined up on the eastern shore of Lake Suwa. It boasts one of the largest volumes of hot water in Japan, with as many as 500 hot springs.

■ Five-star accommodation
Hamanoyu

Located on the southern shore of Lake Akan in eastern Hokkaido, about 3,800 liters of hot spring water gushes out every minute from about 14 hot springs.

■ Five-star accommodation
Akan Yukyu no Sato , Tsuruga, a rural place

It is one of the three oldest hot springs in Izu, with a history of 1,200 years since it was first opened. Its symbol, "Dokko-no-yu," is the oldest hot spring in Izu.

■ Five-star accommodation
Asaba, Yagyu no Sho, Sora Togetsusou Kinryu, Yukairo Kikuya

The spring is a strong alkaline simple spring with a pH of 9.5, which is effective for beautiful skin and is drinkable, yet it is also extremely soft, making it a rare spring quality.

■ Five-star accommodation
Kannon Onsen

The large public bath, "Hiba Senninburo," is a 160-tatami-mat large bath with five different baths, including hot and cold baths.

■ Five-star accommodation
Sukayu Onsen Ryokan, Hakkoda Hotel

The inner sanctum of Aizuwakamatsu. Hot springs bubble up all over the Okawa River, and many inns have open-air baths overlooking the valley.

■ Five-star accommodation
Ookawaso

A hot spring resort where you can experience traditional Japanese beauty. There are 33 inns where you can enjoy hot springs with excellent skin-beautifying properties.

■ Five-star accommodation
Honjinhiranoya Kachoan , Takayama Green Hotel, Hotel Sassocia Takayama Resort, Hidatei Hanaougi, Hida Hotel Plaza

This secret hot spring is located at an altitude of 1,300m along the Yangbetap River. It is closed in winter due to being covered in snow.

This historic hot spring resort is located at the foot of the mountains on the border with Niigata prefecture. A rich supply of hot water gushes out from 38 hot springs.

With approximately 720 hot springs and 31,520 liters per minute, this popular hot spring resort boasts the third largest dynamic hot spring output in Japan.

This hot spring resort is said to have had a legend that in the late Heian period, father and son Minamoto no Yoriyoshi and Yoshiie used the hot springs to heal their injured horse.

■ Five-star accommodation
Hotel Shion , Yumori Hotel Taikan

Nasu boasts an abundance of hot springs with ancient histories, such as the Nasu Seven Hot Springs. The quality of the water varies depending on the source.

This ancient hot spring is said to have been discovered by a descendant of a Heike clan fugitive. There are many open-air baths along the valley, and it is also known as Open-Air Bath Heaven.

■ Five-star accommodation
Honke Bankyu

This hot spring is located around Utoro Port on the west side of the Shiretoko Peninsula, facing the Sea of Okhotsk. It opened in 1946 and has a short history.

■ Five-star accommodation
Kitakobushi Shiretoko Hotel & Resort, Shiretoko Daiichi Hotel

The source of the hot spring is 7km upstream in Kuronai. You can enjoy the famous hot spring nurtured by nature while looking out over the unexplored Kurobe region, which is famous as the most beautiful in Japan.

■ Five-star accommodation
Enraku

During the Edo period, it was a popular hot spring resort. The soft water has long been known as the "bath for blessing children."

■ Five-star accommodation
Fukiya

Its history as a hot spring resort is short even for Izu, beginning in 1956 when natural hot spring water of about 57 degrees Celsius began to gush out.

■ Five-star accommodation
Inatori Ginsuiso , Inatoriso , Cuisine Ryokan Hamanoyu

Since its opening about 400 years ago, this ancient hot spring has continued to thrive as one of the three great hot springs in Oshu. The water is a milky sulfurous spring.

■ Five-star accommodation
Ryokan Tamagoyu

The hot spring first gushed forth in 1961. A new hot spring source was discovered in 2002, and the hot spring boasts one of the largest hot spring yields in Japan.

■ Five-star accommodation
The Hanayagi no Sho Keizan and the Kagetsu

The water is characterized by its strong acidity. Its spring temperature, the amount of hot spring water flowing from one location, and the hydrogen ion concentration of the hot spring water are among the best in Japan.

The clear, colorless water feels smooth on the skin and can be enjoyed at inns in the area stretching from Kotohira Station to Kotohira Shrine.

■ Five-star accommodation
Kotohira Grand Hotel Sakura no Sho , Hana no Yu Koubaitei , Kotosankaku

It began when local fishermen discovered hot bubbles rising from the sea, and is also known as "Salt Bath."

■ Five-star accommodation
Kaike Grand Hotel Tensui , Kasuitei , Kaiketuruya

This hot spring is blessed by Mt. Io, an active volcano that spews white smoke. It is said to have started as a hot spring inn for sulfur miners.

At the foot of Eboshiyama Park, this hot spring resort is dotted with quaint hot spring inns and five public baths. The hot springs were discovered 1,200 years ago.

Arayu, which springs up along the Haruki River, boasts an abundant supply of hot water, 470 liters per minute. The hot spring water, at 98 degrees Celsius, is the highest in Japan.

■ Five-star accommodation
Kasenkyo , Asanoya

One of the three great pleasure towns of Ouu. A hot spring area that spreads along the Yukawa Valley, which is represented by Higashiyama's four great waterfalls, strangely shaped rocks, and Higashiyama Dam.

A hot spring resort with nine hot springs along the seaside. There are 52 inns where you can enjoy hot springs, seafood, and magnificent views.

■ Five-star accommodation
Todaya , Sun Urashima Yuki no Sato , Toba Seaside Hotel

Koriyama's inner sanctum. A scenic hot spring resort that stretches along the Gohyaku River, the 500th river from Kyoto's Yodo River.

■ Five-star hotels : Hotel Hana no Yu and Shikisai Ichiriki

A general term for six hot springs in the city, including Shinyu, Yumachi, and Hayama. Kaminoyama Castle is in the center. A row of samurai residences remains on the north side.

■ Five-star accommodation
Japanese Koyo , Meigetsuso

A hot spring resort on the shores of Lake Kawaguchi in Fujikawaguchiko Town, Minamitsuru District, Yamanashi Prefecture. There are five hot springs with different temperatures and spring quality.

■ Five-star accommodation
Wakakusa no Yado Maruei , THE KUKUNA , Shuhoukaku Kogetsu , Ubuya

The oldest hot spring in Shinshu, which appears in The Pillow Book. The hot spring town is made up of narrow, winding alleys, centered around the Kitamuki Kannon, a shrine to ward off evil spirits.

■ Five-star accommodation
Ryokan Hanaya

It boasts such an abundant supply of hot spring water that it is said that "Yamaga has no baths in a thousand houses." The source is shallow, at only 200m deep.

Known as "Ramune Onsen," this carbonated spring is one of the best in the world and Japan, and is highly effective for bathing.

With over 1,000 years of history, this ancient hot spring has records of being a therapeutic bath from the Edo period. Currently, the hot spring is managed by the town.

■ Five-star accommodation
Hotel Futaba

This hot spring gushes forth in Sumoto City, on the east coast of Awaji Island, facing the Kitan Strait. The slightly brownish water feels smooth on the skin.

■ Five-star accommodation
Hotel Newawaji , Awaji Yumesen

There are simple hot spring towns, hot springs in green, milky white, ink-colored hot springs, and hidden hot springs. The beauty of the Shiobara Valley is overwhelming.

This ancient hot spring is said to have been discovered at the end of the Asuka period. It is famous for being rich in radium and for its ability to purify the skin.

This hot spring wells up on the shores of Lake Yunoko in Oku-Nikko. During the Edo period, it attracted many visitors who came to take a cure for rheumatism and skin diseases.

A hot spring resort from the Edo period, it is now a hot spring resort with abundant hot water, excellent spring quality, and fresh seafood from the Sea of Japan.

■ Five-star accommodation
Bankokuya , Tachibanaya

Seawater that was trapped underground more than 10 million years ago has bubbled up as "fossil seawater."

A hot spring resort dotted with large hotels around Katsuura Port. Hot springs well up on peninsulas and islands, and the quality of the springs varies from source to source.

■ Five-star accommodation
Hotel Urashima

This hot spring resort spreads out at the foot of Enryakuji Temple on Mount Hiei. Japan's largest lake, Lake Biwa, spreads out before you, and to the north you can see the magnificent Lake Biwa Bridge.

■ Five-star accommodation
Yumotokan, Kyooumi

Located on the border between Fukuoka and Oita prefectures, the spring water is a mixture of simple spring water, which is like lotion, and sulfur spring water, and is known for its double skin-beautifying properties.

This hot spring resort is blessed with a great location. The water quality is alkaline simple spring water, so everyone can enjoy it with peace of mind.

■ 5-star accommodation Aso Villa Park Hotel & Resort

This hot spring has a long history, having been in operation for 100 years. It is characterized by its abundant water volume and the high temperature of the spring water, which gushes out at 92°C.

■ Five-star accommodation
Taikanso Senaminoyu

The town is full of historical atmosphere. The spring water is simple and gentle on the skin, allowing you to relax and soothe your fatigue.

There is a single inn called "Kintaro Onsen Kofukaku" and an adjacent day-use bathing facility called "Karuna no Yakata."

■ Five-star accommodation
Kintaro Onsen Kofukaku

Approximately 50 hot springs gush forth along the Tamamaro River. The water is soft to the touch and has excellent skin-beautifying properties, and is drinkable.

■ Five-star accommodation
Ayunosato

In the middle of a primeval beech forest, the only inn open is Tsuta Onsen Ryokan springs from beneath your feet.

■ Five-star accommodation
Tsuta Onsen Ryokan

Myojinkan is located at an altitude of approximately 1,050 to 1,100 meters along the Usui River valley heading towards Tobira Pass.

■ Five-star accommodation
Myojinkan

One of the hot spring resorts in Oboke Iya. Hotel Kazurabashi is located near the Kazurabashi Bridge, which is named after the Heike clan.

■ Five-star accommodation
Hotel Kazurabashi , Wanoyado Hotel Iyaonsen

The best hot spring resort in Tohoku overlooking Mutsu Bay. The hot spring town is on the east side of the town. The water is clear and refreshing.

■ 5-star hotel South room Kaisenkaku