Tomonoura: The Port Town That Inspired Ponyo

Historic Port

Tomonoura occupies a small peninsula jutting into the Seto Inland Sea from Hiroshima Prefecture’s coast, its natural harbor serving as a tidal waiting port for over 1,000 years where ships paused for the current to shift before crossing the Inland Sea. The stone seawalls, lighthouse, dry dock, and harbor office survive from the Edo period, making it one of the most complete historical port landscapes in Japan. Hayao Miyazaki stayed in Tomonoura while developing Ponyo, and the town’s waterfront atmosphere pervades the film’s seaside imagery.

Walking the port takes about an hour, passing white-walled warehouses, sake breweries, and traditional merchant houses. Ota Residence, a 1700s merchant house, opens for tours showing the elaborate interior and collection of Edo-era trade documents. Several shops serve houmeifu, a medicinal herbal liqueur that has been brewed in Tomonoura since the Edo period. The harbor view from Fukuzenji Temple’s tatami room, overlooking the islands scattered across the Inland Sea with the Shikoku mountains beyond, has been called the finest view in the Tokaido.

Exploring the Area

Sensuijima Island, a five-minute boat ride from the harbor for 240 yen round trip, offers walking trails through subtropical vegetation to viewpoints overlooking the Inland Sea, plus a small beach and the Gogoan hermitage where the exiled shogun Ashikaga Yoshiaki reportedly stayed. The island’s modest scale allows a complete exploration in 90 minutes. Back on the mainland, Nunakuma Shrine perches above the harbor with stone lantern-lined approaches and a Noh stage used for annual performances.

The approach to Tomonoura by bus passes through flat countryside, but a detour to Abuto Kannon, a vermilion temple clinging to a cliff face directly above the sea, provides one of the most dramatic temple settings in the Inland Sea region. The main hall extends on stilts over the water, and the views from the railing encompass fishing boats, islands, and the open sea. Access from Tomonoura requires a short drive.

Getting There

Tomo-no-Ura buses depart from Fukuyama Station, reachable by Shinkansen from Osaka in one hour or Hiroshima in 50 minutes. The bus ride takes 30 minutes. The town has limited accommodation, mostly small ryokan and guesthouses, but works well as a half-day trip from Hiroshima, Onomichi, or Kurashiki. Combining Tomonoura with Onomichi’s temple walk and Shimanami Kaido creates a multi-day Inland Sea itinerary.

Tides and History

Tomonoura’s strategic importance derived from its position at the exact point where east-flowing and west-flowing tidal currents in the Inland Sea meet. Ships traveling in either direction would wait here for the tide to turn in their favor before continuing, creating a natural gathering point that sustained the port’s economy for centuries. Korean diplomatic missions to the Tokugawa shogunate stopped here, and the mission’s scholar praised the harbor view as the finest along the Inland Sea coast. This tidal significance also explains why the harbor preserves Edo-period infrastructure: the joyato lighthouse, the gangi stepped seawalls for loading at various tide levels, the tadeba dry dock for ship repairs, and the harbor office that coordinated departures with tidal schedules. These five port facilities surviving intact together are unique in Japan.

Port Heritage and Tides

Tomonoura’s strategic importance derived from its position where east-flowing and west-flowing tidal currents in the Inland Sea meet, forcing ships to wait for favorable tides before continuing. This natural gathering point sustained the port’s economy for centuries and explains why Edo-period infrastructure survives: the joyato stone lighthouse, gangi stepped seawalls for loading at various tide levels, tadeba dry dock for ship repairs, and a harbor office that coordinated departures with tidal schedules. These five port facilities surviving intact together are unique in Japan. Korean diplomatic missions to the Tokugawa shogunate stopped here, and a mission scholar praised the harbor view as the finest along the Inland Sea coast. Houmeifu, a medicinal herbal liqueur combining 16 herbs steeped in sake, has been brewed here since the 1600s and sells in small bottles for 500 to 1,500 yen at shops along the harbor street.

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