Down a narrow, one lane dirt road in Big Sur, California, lies a secluded beach hidden by large, steep cliffs. The cliffs keep a beautiful rock formation known as Keyhole Arch hidden from the hustle and bustle. Located just off Purple Sand Beach, Keyhole Arch is a natural hole carved into the rocks from the crashing waves around it. Every year around the winter solstice, for just a couple of days a beautiful light show happens at the Keyhole Arch. Right before sunset, the sun will dip down right in the…