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[Esan Onsen in Hakodate] Day Trip Bath and Sour Hot Springs Can Be Enjoyed at Esan Onsen Ryokan

June 19th, 2014

Esan Onsen

Esan Onsen (恵山温泉) is a hot spring place in Esan, Hakodate city located in the eastern part of Hakodate city. Esan Onsen Ryokan (恵山温泉旅館) is built at about 90 m above sea level in the foot of Mt. Esan. There are Esan-Kakokgen (恵山火口原), Esan Observatory (恵山展望台), Misaki Lookout (岬展望台), Azalea Park (つつじ公園), Ishida Onsen (石田温泉) and Misaki Onsen (御崎温泉) around here. Unfortunately, convenience stores are not built around the building. The Esan Onsen Ryokan is adjacent to the Azalea Park that is famous for beautiful azalea. A guide map introduced "The distance between a trailhead and a lookout around a hilltop is 500 m. It takes about 20 minutes on foot". I supposed that it was easy to go up because the distance was very short, but there was very rough path, and the path was a steep slope, and I was considerably out of breath. Esan Tsutsuji Festival (恵山つつじまつり) is held in late May.

Mt. Esan
Esan Onsen in Hakodate, Esan Onsen Ryokan
Mt. Esan
Esan Onsen in Hakodate, Esan Onsen Ryokan
Azalea on Observatory
Esan Onsen in Hakodate, Esan Onsen Ryokan
View from Observatory
Esan Onsen in Hakodate, Esan Onsen Ryokan

Atmosphere of Mt. Esan Can Be Watched on Youtube

Movie of Mt. Esan

The heat source of the acidic hot springs is Mt. Esan, and the hot springs are famous for strong acidity with ph 2.2. An alkali soap does not lather because of neutralizing. The power of nature is great. Please take off your noble metals to take a bath, because acids bite into metals. Therefore, you will probably think of dangerous hot springs. But when people bath the acidic hot springs, it is said that those remove old keratin, and promote the metabolism. Those do not seem to affect on a human body. The stimulation may be a little strong for people with sensitive skin.

Mt. Esan
Misaki Lookout in Hakodate
Soap Does not Lather
Esan Onsen in Hakodate, Esan Onsen Ryokan

Esan Observatory

Esan Observatory (恵山展望台) at 330 m above sea level is located on the mountainside of Mt. Esan (恵山) with 618 m in height in the eastern part of Hakodate, and comes into sight after visitors finish going up Esan-Tozan Road (恵山登山道) with some s-curves beside Esan Onsen Ryokan (恵山温泉旅館). Tsugaru Channel (津軽海峡), Shimokita Peninsula (下北半島) and the front side of the gentle can be seen Mt. Esan if it is fine weather. Sea of clouds covered with the Tsugaru Channel sometimes can be seen, too. A walking trail, Esan-Tenbodai Course (恵山展望台コース) with 1337 in length, is built from Esan-Kakohara Parking Lot (恵山火口原駐車場) to here, so the visitors can hike for about 50 minutes. The Esan-Tozan Road under traffic control is available from 06:00 to 18:00. Do not be left behind ! There is not a facility in particular. Admission free. A parking lot is free of charge, too. Article is here

Look of Esan Observatory
Esan Observatory in Hakodate

Misaki Lookout

Misaki Lookout (岬展望台) is located around Mt. Esan (恵山) in the eastern part of Hakodate. Mt. Esan is an active volcano with 618 m in height and the whole area around the Mt. Esan has designed as Esan Prefectural Natural Park (恵山道立自然公園). The end point of Esan-Tozan Road (恵山登山道) beside Esan Onsen Ryokan (恵山温泉旅館) is Esan Kakogen Parking Lot (恵山火口原駐車場). Probably Mt. Esan from back side is the genuine Mt. Esan. The surafce of the mountain are rough, and it emits smoke. The color of the mountain is like Jigokudani (地獄谷 * Hell Valley) in Noboribetsu Onsen (登別温泉). There is a place called Sai-no-Kawara (賽の河原 * Children's Limbo), and early peoples wanted to name around volcanoes dread names for some reason. Those might be catchy names. The Esan-Tozan Road under traffic control is available from 06:00 to 18:00. Do not be left behind ! There are a restroom and a resting station around the Esan Kakogen Parking Lot. Admission free. A parking lot is free of charge, too. Article is here


Misaki Lookout
Misaki Lookout in Hakodate

List of Day Trip Onsen

Visitors can take day trip bath at the Esan Onsen Ryokan.

Esan Onsen Ryokan

Esan Onsen Ryokan is a small-sized long-established onsen ryokan founded in 1932. The interior decoration has an atmosphere such as the Showa period. An entrance fee to a bath facility is JPY 300. Cafe Tsutsuji (喫茶つつじ) is built near the building, and visitors for day trip bath can use the cafe. A staying is possible, too. By the way, They close a business from January to April.

Appearance of Building
Esan Onsen in Hakodate, Esan Onsen Ryokan

There is 1 indoor bath at a public bathroom. The wooden bathroom is small but cozy. A shower is not installed at the bathroom, so you must pour the hot springs on yourself to rinse off your surface dirt and sweat before entering the bath. Heated water is used as hot water of faucets at wash places. The wooden bath is the size that about 4 people can take a bath, and uses 100% natural free flowing hot psrings. It is suitable for taking a long bath because water temperature is lukewarm.

Indoor Bath
Esan Onsen in Hakodate, Esan Onsen Ryokan

The hot springs are aluminum and iron sulfate spring, and are clear and colorless and have sour taste and no smell. The sum total of the hot spring ingredients are 5.296 g/kg. The meta-silicic acid content is 263.4 mg/kg. It is said that the hot springs including the meta-silicic acid with over 200 mg/kg is effective for beautiful skin. What you should mention specially is the aluminum ion. The aluminum ion is said to be most large in Japan together with the hot springs of Ishida Onsen (石田温泉) in Esan, and it has 363.5 mg/kg, too.

Fresh Sour Taste Hot Springs
Esan Onsen in Hakodate, Esan Onsen Ryokan

The hot springs seem to be drinkable. When I drank the hot springs, those were bitter and sour taste such as tonic water. The hot springs seem to be effective for Chronic digestive diseases and Anemia. I guess that it might be tasty if I poured the cooled hot springs into a liquor, and drank it. In addition, if the hot springs get into your eyes, you sting your eyes. Because shampoos and body soaps are not provided at the bathroom, bathers must bring those. Because there is not a restroom at a dressing room, you should get a wash beforehand at the restroom at a corridor.

Atmosphere of Esan Onsen Can Be Watched on Youtube

Movie of Esan Onsen

Types of Hot Springs Aluminum and iron sulfate spring (Type: Acidic, Osmotic Pressure: Low, Spring Temperature Type: Hot spring)
Water temperature of Hot Spring Source 41.5 C
ph 2.2
Indications Neuralgia, Muscular pain, Arthralgia, Frozen shoulder, Motor paralysis, Tightening of the joint, Bruise, Sprain, Relieving fatigue, Chronic digestive diseases, Hemorrhoid, Cold sensitivity, Convalescent convalescence, Healthy increase, Chronic skin diseases, Menopausal problems
Contraindications Acute disease(when there is the heat in particular), Active tuberculosis, Malignant tumor, Severe heart disease, Respiratory failure, Renal insufficiency, Hemorrhagic disease, High anemia, Sensitive person of the skin, Person of the photoallergy, Other diseases during condition of a patient progress generally
Indications of drinking Chronic digestive diseases, Anemia
Contraindications of drinking Nothing
Facilities Indoor bath(1). * Sex-Segregated Bathroom.
Entrance fee to the bath facility Adult: JPY 300. Child: JPY 150. Infant: Free of charge.
Business hours 06:00-20:00
Regular closing day From January to April
Parking lot A free parking is provided (5 cars)
Telephone number +81-138-85-2041
Home page Home page is here
Reservation Jalan is here, Rakuten is here
Mapcode 875 153 083*70

List of Accommodations

Refer to following websites for the accommodations in Esan Onsen. You can get information regarding online reviews and photos.

Esan Onsen Ryokan(恵山温泉旅館)

A page of Great Onsen in Hokkaido is here

Great Onsen in Hokkaido

A page of Hakodate is here




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