Mitsuhama, or Mitsu for short, is the old port area of Matsuyama. Originally a separate village, it gradually merged with Matsuyama as the city expanded. In the old days, whenever the people of Matsuyama had to go anywhere, they would go to Mitsu to get on a boat. Mitsu is also a fishing port, and the morning fish market at Mitsu is an event worth seeing. Mitsuhama is bounded on three sides by water, the Seto Inland Sea and the Miyamae River.

Mitsu is one of the few places in Japan where you can still see buildings dating from the Edo, Meiji, Taisho and Showa periods in a single area, and most of these buildings are also still in use, as homes or shops and restaurants. The dockside is full of boats and cranes, some of which are elegant vintage models.

Places to see include Taiya Restaurant, Itukushima Shrine and the offices of the Ishizaki Kisen shipping line.

Mitsu is home to a lot of seabirds and cats.