Deep-sea diving is an exciting activity that allows people to explore the underwater world. Divers wear special equipment, like scuba tanks and wetsuits, to breathe and stay warm in cold water. They can see colorful fish, beautiful coral reefs, and even shipwrecks while diving deep below the surface. This adventure requires training and safety precautions to ensure divers can handle the pressure and conditions of the ocean. Many divers enjoy taking photographs of marine life and discovering new species. Marine biologists often use deep-sea diving to study ecosystems and learn more about the mysteries of the ocean.