Ojima is a small island in Matsushima Bay, historically used as a retreat by Buddhist monks. Cave hermitages known as "Zuiganji Oku-no-in" remain from the Heian era. The red Togetsu Bridge connects it to the mainland, and Basho mentioned it in Oku no Hosomichi.

Ojima is a small island in Matsushima Bay with a circumference of approximately 600 meters. It is said to have been revered as a sacred retreat for Buddhist monks since the early 9th century, during the early Heian period. The monk Ennin (Jikaku Daishi) is traditionally credited with visiting Matsus…