The blue light period, also known as the blue hour, occurs just after sunset and just before sunrise, casting a magical, soft blue hue across the landscape. During this time, the sun is below the horizon, and the indirect sunlight takes on a predominantly blue shade due to the scattering of short-wavelength light. Along the California coast, this period transforms the sky and ocean into a tranquil, ethereal scene, with the blue tones creating a serene and almost surreal atmosphere. Reflections in the wet sand and calm waters enhance this effect, making it a favorite time for photographers and nature lovers to capture the coast's stunning beauty.