Deep Sea Cavern

Create a cinematic underwater exploration sequence inside a vast deep-sea cavern. The camera begins near the sandy seabed and slowly glides forward into the dark blue cavern, maintaining a smooth, stable underwater movement with subtle natural drift. Above, the distant ocean surface is visible through the cavern opening as powerful shafts of sunlight penetrate the water, forming realistic volumetric god rays that gradually fade into the deep blue abyss.A school of small silver-blue fish swims naturally through the scene, entering from one side and flowing gracefully across the frame before dispersing into the darker depths. Their movement should be coordinated yet organic, with individual fish changing direction subtly in response to the underwater current.The cavern walls are rugged and covered with detailed coral formations, textured rocks, crevices, and patches of marine growth. The sandy seabed stretches across the foreground with delicate underwater ripples and realistic caustic light patterns dancing continuously across the sand and rock surfaces.As the camera moves deeper, the environment becomes darker and more mysterious while remaining visible through natural ambient blue light. Tiny suspended particles, bubbles, and drifting sediment float slowly through the water, adding realistic underwater atmosphere and depth.The camera gently tilts upward near the end of the shot, revealing the enormous cavern ceiling, the glowing shafts of sunlight above, and the tiny school of fish silhouetted against the brighter water. End with a slow, peaceful forward drift into the deep blue darkness.Photorealistic cinematic underwater cinematography, realistic fluid dynamics, physically accurate light scattering, natural caustics, volumetric sunlight, detailed coral and rock textures, realistic fish movement, deep blue and turquoise color palette, serene mysterious atmosphere, immersive scale, smooth camera motion, subtle underwater haze, HDR, ultra-detailed, 4K/8K cinematic quality, no text, no watermark, no artificial glow, no fantasy effects, no camera shake.

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