Seafloor off Natural Bridges State Beach, Santa Cruz, California

The seafloor off Natural Bridges State Beach, Santa Cruz,
California, is extremely varied, with sandy flats, boulder fields,
faults, and complex bedrock ridges. These ridges support rich
marine ecosystems; some of them form the "reefs" that
produce world-class surf breaks. Colors indicate seafloor
depth, from red-orange (about 2 meters or 7 feet) to magenta
(25 meters or 82 feet).