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Yoshino Kumano NP, Wakayama
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Ogokuda Beach below Shionomisaki Lighthouse is noted for having the greatest mollusk diversity on Honshu. Records from the cape total 1,089 species—including snails, clams, tusk shells, chitons and octopuses.
At Shionomisaki’s winter fire festival, local high-school archers launch flaming arrows to start the burn that clears pests and encourages fresh grass at Bōrō-no-Shiba. The gathering also serves shōrasan nabe, a flying-fish dumpling soup.
Shionomisaki was once an island: currents built a sandbar that joined it to the Kii Peninsula. That narrow land bridge is a tombolo, leaving the cape a land-tied island rather than an ordinary peninsula.
Shionomisaki’s flat, raised terrace holds little water, so farmers turned to sweet potatoes rather than rice. Kushimoto records the crop by 1615; a notably sweet local selection is now sold as Nantan Mitsuhime.
One of 8 lighthouses agreed under Japan’s 1866 treaties with Western powers, Shionomisaki’s light first shone provisionally in 1870. Its formal 1873 tower was octagonal wood, then rebuilt in stone in 1878.
Local tradition identifies Shionomisaki with the “Kumano Cape” where Empress Iwanohime is said to have gathered leaves for a court feast. A grove by the cape’s shrine preserves about 50 rare trees traditionally identified as those leaves.
On the beach below Shionomisaki Lighthouse, pillow lava preserves the moment magma erupted underwater and cooled quickly into rounded forms. Dark and pale rocks side by side reveal the cape’s complex mix of magmas.
The warm Kuroshio flows close to Shionomisaki, helping coral communities thrive unusually far north. The Environment Ministry identifies the cape’s west coast as a diverse coral habitat, with many species near their northern range limits.
In 1959, Kyoto University researchers measured winds at Shionomisaki Lighthouse as the Ise Bay Typhoon struck. The storm-prone cape later became home to the university’s wind-observation station, established in 1961 to study how strong winds damage buildings.
