Summertime is beach time in Southern California, even at night. Locals gather around bonfires, roast marshmallows and enjoy each other's company. On some very special nights, there's even sex — at least for the fish.
The grunion run happens only in the spring and summer months. Late at night, under the full and new moons, thousands of tiny, silvery fish swim to shore for a very peculiar mating ritual.