San Diego Coastal Ocean Observing System: gateway for up-to-date oceanographic, weather, & water quality data for San Diego coastal region [Clean Beaches Initiative]
Grunion run predictions: Grunion are found
only along the coast of southern California & northern Baja California. Grunion come out of the water
completely to lay their eggs in the wet beach sand on a few nights after the highest tide associated with each
full or new moon. Here's more information on grunion [Calif Dept Fish & Game]