Shinkakuji Temple located in Sanda-machi, Hachioji City, Tokyo is a temple of the Chizan school of the Shingon sect. The main object of worship is Fudo Myoo. The temple is the 71st fudasho-temple of the Tama Shin-Shikoku 88 Holy Sites. The temple was founded in 1411. The temple treasure of the sitting statue of Yakushi Nyorai is designated as a Cultural Property of the city. The bell and bell tower are said to have been dedicated by Hachioji Sennin Doshin (junior officials) in 1660.

Shinkakuji Temple is famous for azalea and “Kawazu Gassen (the Frog Concert).” In the precinct is a pond called Shinji-ike in the shape of the Chinese character for “heart,” around which grow a lot of azalea and they are in full bloom in the middle of June. From the middle to the end of March, a lot of toads move to this pond for laying eggs. Though the toads decreased in number today, there used to be tens of thousands of toads got together here, which was called “Frog Concert” by the local people.