California's coastline extends for 1019 mostly-scenic miles. The Northern Pacific Ocean's clockwise currents keep the water along the coast cool. This helps keep the temperatures close to the ocean moderate throughout the year. The Coastal Highway (California 1) follows long stretches of the coastline, providing great views to the coast's many visitors. Below are links to more information about various regions of California's coast.
Mendocino Coast
Sonoma Coast
San Francisco Bay Area
Monterey Coast
Big Sur Coast
Tahoe Pacific (Photo Gallery)