underwater scene, grand reef, colorful coral, diverse marine life, school of tropical fish, clear blue water, sunlight filtering through water, scuba diver exploring, sea turtles, anemones, soft corals, hard corals, sea fans, vibrant ecosystem, biodiversity, underwater photography, wide-angle lens, natural light, 3/4 view, high-resolution texture, realistic, serene atmosphere, peaceful, hidden treasure, submerged rocks, marine sanctuary, conservation area.