Matsushima Bay Scenic Cruise

Matsushima Bay contains exactly 260 islands (the count was verified in the 1790s by a monk who documented each one). The largest, Miyato-jima, measures 3.8km across; the smallest are rock pillars barely 2 meters wide. Each island's shape results from differential erosion—the volcanic tuff stone weathers at different rates depending on mineral composition, creating windows, arches, and mushroom-cap formations. The 17th-century haiku poet Basho visited in 1689 and wrote only "Matsushima, ah Matsushima, Matsushima"—unable to compose a proper verse because the beauty exceeded words. Local boat pilots can identify every island by name and tell you which ones house the nests of umineko gulls (black-tailed gulls that arrive March-August to breed).