In the year 806, the holy priest Tokuichi constructed Hattachi-Yakushi Temple as a place of worship for the Buddhist deity who has the ability to ensure the safe voyage of seafarers. The temple grounds are extremely beautiful in spring when the hydrangeas bloom, earning the temple the local nickname ‘Hydrangea Temple’. In front of Hattachi-Yakushi Temple is Bentenjima Island and Shrine, and the Hattachi Coastline, which connects the mainland with the island. The Hattachi Coast is covered in unique gravel, which has traditionally been thought to have healing properties. However, removing a stone and bringing it home can have the opposite effect.