The blue glow is caused by a common species of plankton.
Bioluminescent algae in a beach : r/interestingasfuck
Finding Bioluminescence Along California's Coast
Photos Ocean flicks switch on plankton light show – Santa Cruz Sentinel
Incredible moment California boogie boarders surf on bright blue bioluminescent waves caused by neon-colored plankton that live just off the coast
Glow-in-the-Dark Waves Light Up Santa Cruz Beach - Active NorCal
Bioluminescence in San Diego: Bioluminescent Waves To See
Bioluminescent Waves Are Lighting Up Southern California's Coast
Bioluminescent Waves at California Beaches
Glowing bioluminescence waves were spotted in Southern California again
Another Wave Of Mesmerizing Bioluminescence Is Lighting Up CA Shores - Secret Los Angeles
Bioluminescent Waves Are Lighting Up Southern California's Coast
Why Are California's Waters Lighting Up in Blue? - The New York Times
Bioluminescent waves glowing in Big Sur
Bioluminescent waves glow in the dark at Santa Cruz County beach
Bioluminescent waves glow in the dark at Santa Cruz County beach