Did Namahage really exist? Traces of demons remain throughout the Oga Peninsula – Oga Peninsula and Demon Legends (2) [Akita Prefecture]

Leaving aside the debate over whether Namahage are demons or gods, the Oga Peninsula is home to a plethora of demon legends. The origin of the legend is that five bats who accompanied Emperor Wu of Han transformed into demons. For more details on this story, please see [Oga Peninsula and Demon Legends (1)]

Here we will introduce you to some famous places that actually have the word "oni" (demon


The path where demons walked secretly: "Oni no Kakuremichi"

It is said that demons frequented the hot springs. The mysterious "Oni no Hidden Path" ©Oga Peninsula Ogata Geopark

" Demon's Hidden Road ) is a famous spot related to demons in the Oga Onsen hot spring resort. The cut-through that runs through the vertical cliffs in the forest near the hot spring town gives the impression of being part of a path that demons used to hide themselves as they descended into the mountain village, hence the name "Oni no Kakuremichi" (Demon's Hidden Road).

In fact, this area was the site of open-cut limestone mining from the Meiji to Taisho eras, and the cliffs on both sides are made of limestone. Currently, the only remaining trace of the quarry is this "Oni no Kakuremichi" section. This narrow road was a trolley road used to transport mined stone to a collection point, and the cliff section is the remains of the open-cut mine

The limestone that makes up the cliffs is made up of many thin layers of rock stacked together like a giant mille-feuille, and its components are contained in the hot springs of Oga Onsen as travertine (sintered travertine)

Oni no Kakuremichi (The Demon's Hiding Path) <Information>

  • Facility name: Oni no Kakuremichi
  • Location: Kusakihara, Kitaura Yumoto, Oga City, Akita Prefecture
  • Phone number: 0185-33-3191 (Oga Onsenkyo Cooperative Association)
  • URL: Demon's Hidden Path
  • access:
    • Public transportation: Approximately 40 minutes by Oga Peninsula Ainori Taxi Namahage Shuttle from Oga Station on the JR Oga Line
    • By car: Approximately 45 minutes from Showa Oga Peninsula IC on the Akita Expressway towards Oga Peninsula

Google Map


"Oni no Tawara Korogashi" - Demons rolling rice bales

"Oni no Tawara Korogashi" (Demon Rolling of the Straw Bags), where the tracks of the demon rolling the straw bags remain clearly visible ©Japan Geological Survey Association

There is a road made of reddish-brown stones that runs between the rugged black rocks of the coastline. It is said that this road was built by demons so that they could carry heavy loads such as rice sacks from their ships that arrived on the shore to their homes, and so it came to be called Oni no Tawara Korogashi" (Demon's Baguette

"Oni no Tawara Korogashi" is a formation formed when brown lava (basalt/dolerite) that flowed about 21 million years ago entered a crack in the granite that was erupted in a volcanic eruption about 90 million years ago and solidified there. Nearby, black volcanic rock called volcanic conglomerate, which is about 7,000 years old, can be seen, making it a valuable landscape from an academic perspective

Oni no Tawara Rolling <Information>

  • Facility name: Oni no Tawara Rolling
  • Location: Kitaura Nyudozaki, Oga City, Akita Prefecture
  • Phone number: 0185-24-2100 (Oga City Tourism Association)
  • URL: Oni no Tawara Korogashi
  • access:
    • Train: Approximately 1 hour and 5 minutes by Ainori Taxi "Namahage Shuttle" from Oga Station on the JR Oga Line
    • By car: Approximately 45 minutes from Showa Oga Peninsula IC on the Akita Expressway towards Oga Peninsula

Google Map


"Oni no Sentaku Iwa" (Demon's Washing Rock) - the image of an ogre diligently doing his laundry

"Oni no Sentaku Iwa" (Devil's Washing Rocks) lined up in an orderly fashion like a washboard © National Federation of Geological Survey Associations

" Devil's Washing Rock Unosaki Coast popularly known as " Akita's Uyuni Salt Flats ." When you imagine a tough-looking demon busily doing his laundry here, a heartwarming scene comes to mind.

By the way, do you know what a washboard

It consists of a thin wooden board with 15 to 20 small circular grooves, and soapy laundry is rubbed against the grooves to remove dirt. Since the 1950s, with the spread of electric washing machines and the emergence of laundromats, washboards have all but disappeared. However, they are said to have started selling again around 2000. Originally measuring around 50cm long and 20cm wide, one manufacturer released a smaller washboard for use on business trips, which became an unexpected hit, and to date, total sales have reached an astonishing 1 billion yen

I've digressed, but "Oni no Sentaku Iwa" is a landscape that was created when the soft rocks were worn away by the erosive action of waves, leaving behind the hard layers of rock

Unosaki Coast, where the Devil's Washing Rock is located, is known as the "Uyuni Salt Flats of Akita," and the beautiful reflections on the water's surface ©Akita Prefecture

Oni no Sentakuiwa (Devil's Washing Rock) <Information>

  • Facility name: Oni no Sentakuiwa (Devil's Washing Rock) (Unosaki Coast)
  • Location: Unosaki, Daishima, Funakawa Port, Oga City, Akita Prefecture
  • Phone number: 0185-24-4700 (Oga City Tourism Association)
  • URL: Oni no Sentakuita
  • access:
  • Train: Take a taxi from Oga Station on the JR Oga Line, or rent a car near Oga Station
  • Car: Approximately 70 minutes from Akita Expressway Showa Oga Peninsula IC

Google Map


The remains of an ogre's dwelling, "Oni no Kakurezato" (Hidden Village of the Demon), remain on Mount Kanpu

Inside the pyramid-shaped rock is a living space of about 3 tatami mats where an ogre is said to have lived. ©Japan Federation of Geological Survey Associations

Kanpuzan which stands at the base of the Oga Peninsula , is a low mountain with an elevation of about 355m. Near the summit, where a rotating observation deck spreads across the grassland, there is a popular tourist spot on the Oga Peninsula, offering a 360-degree panoramic view from the Oga Peninsula to the Sea of ​​Japan and Lake Hachiro (formerly Lake Hachirogata).

The remains of the crater of Mt. Kanpu. There is no volcanic activity at present. ©Oga Peninsula-Ogata Geopark

Mt. Kanpu was originally a volcano that was active from about 30,000 years ago to about 10,000 years ago, but is currently inactive and not registered as an active volcano. There is a record of the last eruption in 1810 during the Edo period, but the actual nature of the eruption and the extent of the damage are unknown, and the accepted theory today is that this eruption report was fabricated within the Akita domain in an attempt to report to the shogunate that there had been damage, even though there had not been an eruption

There are three crater remains on Mt. Kanpu, but at the southwest end of the first crater, there is a place in the Kusagen area where large rocks have suddenly piled up like a pyramid. Because there is a space of about 3 tatami mats inside, it is said to have been the "Hidden Village of Demons" (or "Stone Storehouse"), where demons hid and lived

Geologically speaking, "Oni no Kakurezato" was formed when lava was pushed out from the ground during an ancient eruption, forming a mountain that could not withstand the weight and collapsed

Demon's Hidden Village/Kanpuzan <Information>

  • Facility name: Demon's Hidden Village/Kanpuzan
  • Address: 62-1 Kanpuzan, Wakimoto Tominaga, Oga City, Akita Prefecture 
  • Phone number: 0185-25-3055
  • Kanpuzan Rotating Observation Deck/Observation Deck Restaurant
  • Opening period: late March to late November
  • Closed: Open daily during business hours, from early December to mid-March
  • Admission fee:
  • Rotating observation deck: Adults 550 yen, Elementary and middle school students 270 yen
  • *The revolving restaurant can be used without paying admission
  • URL: Demon's Hidden Village/Kanpuzan
  • access:
  • Public transportation: Approximately 20 minutes by Kanpuzan sightseeing taxi (reservation required) from Oga Station on the JR Oga Line
  • Car: Approximately 40 minutes from Akita Expressway Showa Oga Peninsula IC

Google Map


Shinzan Shrine, the origin of Namahage

Within the grounds of Mayama Shrine, the Namahage Museum and Oga Mayama Folklore Museum have been established, and the legend of the Oga demon remains. The Namahage Sedo Festival is also held within the grounds of Mayama Shrine. ©Akita Prefecture

the Oga Sanzan Mount Shinzan (567m above sea level) is the northernmost Mount Honzan (715m), and Kenashizan (677m) were worshipped as the mountains of Shugendo, a mountain religion that began in the Asuka period and flourished most during the Heian period, in which practitioners retreated to the mountains to practice strict ascetic practices.

Shinzan Shrine was founded in the early Nara period, and is said to have been built by Jikaku Daishi Ennin Temple , and after the Meiji Restoration, it became Shinzan Shrine.

From the Heian period through the Edo period, it is said to have flourished immensely as a sacred place of Shugendo, receiving patronage from the powerful clans that ruled Oga and the Satake clan of the Kubota domain

Mayama Shrine is known as one of the shrines where demon legends remain. The Namahage Museum and Oga Mayama Folklore Museum have been opened within the shrine grounds, where visitors can see various Namahage events that are passed down on the Oga Peninsula, as well as exhibits of 150 Namahage masks, and even experience wearing Namahage. The Namahage Sedo Festival is held within the shrine grounds every year on the second Friday, Saturday, and Sunday of February, attracting many tourists

Shinzan Shrine <Information>

  • Facility name: Shinzan Shrine
  • Location: Kitaura Mayama Mizukuisawa, Oga City, Akita Prefecture
  • Phone number: 0185-22-5050
  • URL: Namahage Museum
  • Public transportation: Approximately 40 minutes by Oga Peninsula Ainori taxi “Namahage Shuttle” from Oga Station on the JR Oga Line
  • Car: Approximately 40 minutes from Akita Expressway Showa Oga Peninsula IC

  • Facility name: Namahage Museum
  • Admission fee: General 660 yen, Elementary, junior high and high school students 330 yen, Combined ticket for 2 museums / General 1100 yen, Elementary, junior high and high school students 660 yen
  • Opening hours: 8:30-17:00
  • Closed: Open all year round

  • Facility name: Oga Shinzan Folklore Museum
  • Admission fee: General 770 yen, Elementary, junior high and high school students 550 yen, 2 museum ticket / General 1100 yen, Elementary and junior high school students 660 yen
  • Namahage custom learning course (Namahage experience):
  • April to November / 9:00-16:30 (takes about 20 minutes between 9:00-16:30)
  • December to March/9:30 to 15:30 (9:00 to 15:00 from January 1st to 2nd)
  • Closed: Open all year round

Google Map


Oga Peninsula and the Legend of the Demon


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