Cinematic Underwater Diver and Whale Encounter

Cinematic underwater nature-documentary style, 15 seconds. A lone diver explores a vibrant coral reef ocean environment, wearing a sleek wetsuit, diving fins, mask, and a compact oxygen tank on his back. Camera follows him smoothly from behind and the side as he glides through crystal-clear blue water. [0-4s] Wide shot revealing a rich underwater world - colorful coral reefs, schools of tropical fish darting past, sea turtles and small reef sharks in the background, sunlight beams piercing down through the water. [4-7s] He swims past a large octopus resting on a rock, its skin shifting color as he passes calmly, continuing forward with smooth, controlled fin movements. [7-10s] Suddenly, a massive whale appears in the distance, slowly turning to look directly at him. He freezes mid-water, eyes widening slightly as he registers the danger of its size and proximity. [10-13s] He calmly and swiftly moves behind a tall underwater plant/kelp formation for cover, staying still and controlled, not panicked. [13-15s] The whale glides past rapidly just above/beside him, a powerful surge of water and bubbles trailing in its wake, camera shaking slightly from the current as it passes. Realistic, breathtaking underwater cinematography, natural blue-green color grading, volumetric sunlight rays, ambient underwater sound design - bubbles, distant whale calls, muffled water movement. No dialogue, no music, no text overlay, no watermark. 9:16 vertical, 15 seconds