Mount Osore (恐山 Osorezan) is a temple and miniature wasteland in the middle of the Shimokita Peninsula in Aomori, Japan.
According to Japanese tradition, Mount Osore — literally "Dread Mountain" — is the gateway to Hell, where souls pause on their way to the underworld. A barren volcanic wasteland of howling winds and bubbling sulphur pits, the origin of the legend is easy to understand.
Mount Osore is not an actual mountain, but the area is surrounded by a number of picturesque peaks.
The temple is only open to the public from May 1st to October 31st, before the harsh winter sets in. The whole area of interest is within the temple compound which closes early (probably at 7 PM) so make sure you arrive in time.
Most visitors arrive by bus from Mutsu. A rarely-used road (not served by public transport) also links to the Yagen Valley.
If you are driving, take Rte 279 or Rte 338 towards Mutsu. Follow the blue signs which will have "Osore-zan" written on them and will lead you straight to the site. Osore-zan is about a 2-hour drive from Aomori.
Another alternative is to hitchhike to the temple from Mutsu; locals should be able to point out the access road, which is marked by signs in only a few scattered places. During vacation periods, traffic to the temple is fairly heavy and finding a ride is not too difficult.
Admission is ¥500 for adults and ¥100 for children.
Your only option for getting around is on foot.
There are a number of small restaurants and souvenir shops outside the temple.
The temple offers lodging for pilgrims (¥10,000-15,000 with meals), tel. 0175-22-3825. However, unless you like the pervasive smell of rotten eggs, you might wish to stay in Mutsu or Yagen instead.
Due to intense volcanic activity sulphur dioxide and other gases are abundant, so the entire area can smell like rotten eggs. Soil near some of the cauldrons may not be stable, and the liquids inside are literally boiling. Heed the warning signs, do not cross the ropes, and head out if you start to get a headache or feel sick.
2nd-order administrative division
Primary administrative division