Amanoiwato-jinja (天岩戸神社) is a Shinto shrine located in Takachiho, Miyazaki Prefecture, Japan.

It is dedicated to the sun goddess Amaterasu and sits above the gorge containing Ama-no-Iwato, the cave where, according to Japanese legend, the goddess hid after battle with her brother, plunging the world into darkness until lured out by the spirit of merriment Ame-no-Uzume.

The Amano-Iwato cave is an object of worship in festivals and is a rock cave on the other side of the Iwato River from nishihongū.

You can see the cave from nishihongū after participating in a Shinto ritual for purification.

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