Tokko no Yu in Shuzenji: Kobo Daishi's Sacred Spring and the Tragedy of Minamoto Yoriie
The Tokko no Yu hot spring in Shuzenji is said to have been discovered by Kobo Daishi (Kukai) in 807 when he struck the riverbed with his vajra scepter. This sacred spring — the oldest in Izu — flows at the heart of Shuzenji Onsen, the same town where the second shogun Minamoto Yoriie was confined and assassinated. A complete one-day guide to Shuzenji's sacred and historical sites.