A breathtaking underwater scene, rendered in a realistic documentary photography style. A diver, illuminated by a single, powerful beam of light, explores an ancient, half-submerged shipwreck, its wooden hull covered in vibrant coral and swaying anemones. Schools of iridescent fish dart around the wreckage, creating shimmering patterns. A majestic sea turtle glides gracefully in the foreground, its shell textured and detailed. The water is a deep, cerulean blue with shafts of sunlight filtering down from the surface, creating a mystical atmosphere. Fine details on the coral, fish scales, and the diver's equipment. Emphasize the sense of scale and the quiet grandeur of the deep sea.