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Mendocino arch
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Mendocino
About
The Mendocino Arch is a natural rock formation on the Mendocino Headlands. Unlike bridges, it forms grotto-like tunnels carved by waves, one curving near Portuguese Beach off Main Street. Sunlight filters through the long low tunnel. The arch sits in Mendocino Headlands State Park with cliffs, secluded beaches, and coastal vistas.