diver named Dave, male, muscular build, scuba gear, underwater pose, exploring, hydrothermal vents, vibrant seahorse, marine life, bubbles, wetsuit, flippers, oxygen tank, helmet with flashlight, gripping underwater camera, volcanic activity, bioluminescent organisms, coral reef nearby, thermal contrast, deep-sea environment, ambient underwater lighting, wide-angle lens, 3/4 view, high-definition textures, realistic style, dynamic composition, soft light filtering through water.