California Grunion Facts and Expected Runs

California grunion are small, silvery fish found only along the coast of Southern California and northern Baja California. Unlike other fish, grunion come completely out of the water to lay their eggs in the wet sand of the beach. Grunion make these excursions only on particular nights and with such regularity that the time of their arrival on the beach can be predicted a year in advance. This phenomenon can be seen on many beaches in Southern California.