Natural Bridges State Beach, Santa Cruz, California.
Naturally formed bridges along the coastline of California are truly works of art by the erosive forces of water and wind. One of the best natural bridge exists on the aptly named Natural Bridges State Beach at Santa Cruz. These bridges form because crashing waves converge at a point and slowly erode away the rock creating a passageway. The erosion eventually destroys the bridge but new ones keep forming over a geologic time span of hundreds and thousands of years. In that sense these are transients, and like everything else that is beautiful in nature, these exist only for a short time... Go see them today!
From California: Natural Bridges State Beach