Number 6 of my “10 Global Hellgates” post.
Mount Osore “the name of a Buddhist temple and folk religion pilgrimage destination in the center of remote Shimokita Peninsula of Aomori Prefecture, in the northern Tōhoku region of northern Japan. The temple is located in the caldera of an active volcano and is believed in Japanese mythology to be one of the gates to the underworld.” It is 1 of 3 most sacred mountains in Japan & has low volcanic activity which gives a stark landscape with steam vents & bubbling pools Its also “a pilgrimage site for parents grieving for their lost children, leaving brightly-colored pinwheels and building little towers of stones in their prayers to Jizo.”
Fear Mountain. The Mountain of Dread. A entrance or doorway to hell. Not only Japanese mediums but other mediums who visit can speak in the voice of loved ones who are on the other side. According to very old Japanese Buddhist lore, the souls of prematurely departed children are sent to a sort of purgatory at Sai no Kawara, a riverbed of the underworld located at the entrance to Hell & the children are tasked with building little pagoda-like towers of pebbles, but ogres chase them away & destroy all of their efforts. However, Jizo, a bodhisattva and guardian of children, comes to their rescue to watch over them as they try again.
Sources:
https://en.wikipedia.org/wiki/Mount_Osore
thoughtcatalog.com/erin-cossetta/2019/05/real-life-entrances-to-hell-you-can-actually-visit/
https://travel.rakuten.com.sg/campaign/ranking/folklore/
Further Reading:
Mount Osore
https://offbeatjapan.org/mount-osore/
https://www.shaman-australis.com/forum/index.php?/topic/36739-the-legend-of-the-skull-mushroom/
StarWolf Geek 