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A French amateur photographer managed to snap a photo of bioluminescence on the beaches of Sarzeau in Brittany on July 9. This phenomenon is very rare on French beaches and taking pictures is a real feat as the appearance is so unpredictable.
On his Facebook page, Richard Jeune explains that he was there after the release of another photographer: “I tried my luck at the top of Penvins and was not disappointed. Not only was the phytoplankton electroluminescent phenomenon present and intense, but I had the added bonus of a beautiful Milky Way in my images. Once the light pollution subsided (no one left in the parking lot, restaurant closed and alone in the world on this beach), the site became a real firework display.” Bioluminescence refers to the production and emission of light by certain living organisms: fireflies for example, but also by phytoplankton present in the first 40 meters of depth. On upswing, the phytoplankton rise to the surface and begin to glow as they are tossed about by the waves.