Keyhole Arch

Keyhole Arch is a sandstone formation on the Big Sur coast with a large opening carved by ocean waves over time. This natural opening creates a distinctive frame toward the Pacific Ocean and rises approximately 70 feet (21 m) from the water.

The structure formed over millions of years through continuous erosion of sedimentary rocks by powerful ocean currents and wind. This steady force gradually carved out the distinctive opening visible today.

Every winter, photographers gather at this location to capture the rare phenomenon of sunlight beaming through the arch during winter solstice.

Access the formation via Sycamore Canyon Road from Highway 1 at Pfeiffer Beach. The best views and photography happen from the rocks around the cove, and you should plan to visit during daylight hours.

During December and January, when the setting sun aligns just right, an orange beam shines directly through the opening. This rare display of natural light draws many photographers hoping to capture the moment.

Location: Monterey County

Address: Sycamore Canyon Rd, Big Sur, CA 93920, USA

GPS coordinates: 36.23818,-121.81733

Latest update: December 6, 2025 19:05