3d isometric, tall vertical rectangular cube scene of a clear turquoise ocean shown in shallow vertical cross-section. On the water’s surface, a large motorboat floats with two people on board. One person, wearing a red life vest, is standing near the motor at the back, holding the throttle and steering arm. Nearby in the water, the second person dressed in a sleek black scuba diving suit is already submerged and actively swimming straight downward toward the ocean floor, arms extended, fins kicking. Below, at the ocean floor, lies the fully sunken wreck of an old wooden sailing ship, partially broken and overgrown with coral. Around the wreck, several ancient treasure chests have spilled open, with gold coins and artifacts scattered across the seafloor. Schools of tropical fish swim through the scene. Sunlight beams filter through the water, creating soft caustics and shadows. Highly detailed, cinematic lighting, photorealistic, rendered in Cinema 4D, 8k resolution, neutral gray background.