Shark diving – South Africa
Shark diving in Gansbaai, South Africa. Amazing experience! Some facts: Great whites are the largest predatory fish on Earth. They grow to an average of 15 feet (4.6 meters) in length, though specimens exceeding 20 feet (6 meters) and weighing up to 5,000 pounds (2,268 kilograms) have been recorded. Great whites can detect one drop of blood in 25 gal (100 L) of water and can sense even tiny amounts of blood in the water up to 3 mi (5 km) away. A great white shark's teeth can measure more than 2.5 inches (5.7 centimeters) long. Adult great white sharks can swim up to speeds of 43 miles (69 kilometers) an hour.