2025 Bioluminescence Calendar California. One of the most mesmerizing of these. For more than a week straight, photographers, scientists and adventure seekers alike have captured dazzling images of an electric blue light emitting from southern california’s waves at night.

Here’s an explanation of california bioluminescence and where to see it. With 90% of california’s wetlands loss to development, elkhorn slough offers a special opportunity to observe a biologically rich and critically endangered habitat.