Bioluminescent Waves on Black Sand Beach at Midnight

Emerald and electric blue streaks of bioluminescence fracture against dark, wet basalt grains under a moonlit sky. A thin veil of ground mist hovers low over the shoreline, softening the transition between the black sand and the churning water. In the background, the curved stone wall of a Croatian harbor glows with the warm amber points of scattered lanterns, contrasting sharply with the cold, distant blue of the sea. The water surface acts as a mirror, duplicating the bioluminescent trails and the harbor lights in a symmetrical reflection that doubles the visual depth. Early spring chill is visible in the stillness of the air and the crisp, sharp edges of the glowing foam as it collapses onto the dark shore. at the edge is a single line of neon blue light tracing the curve of a receding wave against the matte black sand.