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Fuji-Hakone-Izu NP, Shizuoka
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The sunset’s “gold” is geology, not gold: about 16-million-year-old volcanic rock was altered by hot water underground, then weathering turned it yellow-brown. Evening light makes the cliffs glow.
A horse’s head seems to rise from the sea at Uma Rock (“Horse Rock”), the cape’s beloved natural sculpture. The surrounding propylite exposure was designated a Shizuoka Prefecture Natural Monument in 1988.
The same hydrothermal processes behind Cape Kogane’s colors also created quartz-rich silica at nearby Ugusu. At one point, its mine supplied about 40% of the silica used in Japanese plate glass and employed more than 300 people.
Yukio Mishima set his novel “Beastly Entanglements” at Cape Kogane. A literary monument in the park marks the connection, so this golden shoreline has a place in Japanese fiction as well as in the sunset view.
Local glass artists and residents made Kamo-fūrin wind chimes as a symbol of Ugusu’s glass culture. The craft grew from a district once known for supplying raw material to Japan’s plate-glass industry.
The Izu Peninsula Geopark guide notes that tiny pyrite crystals can sometimes occur in coral-like shapes in Koganezaki’s rocks—an unexpected sparkle beneath the sunset glow. The guide says to leave them in place.
On September 23, 2005, Nishiizu declared itself “Japan’s No. 1 sunset” town. The declaration helped make sunset viewing a community project, with local volunteers sharing the coast’s sunset appeal.
