Underwater 3D Ice Crystal Reverie

Ultra-detailed 3D render of ice crystals suspended in crystal-clear seawater. Hexagonal, glassy faceted crystals drift slowly, their surfaces refracting and splitting sunlight into prisms. The underwater scene features a turquoise to deep blue gradient, soft volumetric light shafts piercing from above, and dynamic caustics dancing on the sandy seabed, coral, and swaying kelp. Include tiny bubbles and floating particles; subtle motion blur to imply slow drift. Realistic refraction, wet reflections on crystal facets, and slight chromatic aberration. Camera angle from just below, looking upward to emphasize depth and weightlessness, with distant reef structures softly blurred in the background.