Beach & Waterfront · Miura

Jogashima Umanose Domon 城ヶ島馬の背洞門

A natural sea arch on the wild southern coast of Jogashima at the tip of the Miura Peninsula, reached across rugged rock terraces, with tide pools, lighthouses and Fuji views around it.

HoursOpen 24 hours

ClosedOpen daily

PriceFree

Getting thereJogashima bus terminal (from Misakiguchi Station, Keikyu), 10-15 min walk

Time needed2-3 hours

Best timeClear days; sunset

AddressMisaki-machi Jogashima, Miura, Kanagawa

About

Jogashima is a small island linked by bridge to Misaki at the southern tip of the Miura Peninsula. Its south coast is a dramatic landscape of tilted rock layers and wave-cut terraces, and the highlight is Umanose Domon ("horses back cave gate"), an 8 m natural arch carved by waves and wind. Walking trails cross the rocks between the arch, Jogashima Park with its Awasaki lighthouse, and the 1870 Jogashima lighthouse on the west side. On clear days you see Izu Oshima and Mount Fuji. Combine with lunch of tuna in Misaki, famous for maguro.

Highlights

8 m natural sea arch carved from striped rock
Tilted rock layers and wave-cut terraces along the coast
Two historic lighthouses and the Kitahara Hakushu poem monument
Views to Mount Fuji and Izu Oshima
Misaki maguro (tuna) lunch nearby

Tips

Climbing on the arch is prohibited; wear sturdy shoes, as the rocks are uneven.
Keikyus Misaki Maguro Kippu covers train, bus and a tuna meal: good value from Tokyo.
Keikyu bus from Misakiguchi to Jogashima terminal, about 30 min.
Avoid the rocks in high surf or typhoon swell.

Open in Google Maps · Info checked 2026-10-09

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Jogashima Umanose Domon 城ヶ島 馬の背洞門

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Jogashima Umanose Domon 城ヶ島馬の背洞門