Photo copyright Tim Nicholson.
Taken on Little Brother, Egyptian Red Sea.
One of the favourite animals to see on dives, the turtle is a graceful, curious, animal. When laying eggs, Turtles return to the beach on which they were born. How they navigate back to the beach remains uncertain. The hatchling turtles instinctively seek the brightest horizon, which on moonlit nights will be the direction of the sea. Although clumsy on land, they are agile and fast underwater. There are several species of turtle in the Red Sea.

Further Reading
Underwater Photographer by Martin Edge
The Biology and Conservation of Sea Turtles , Ed. Karen A. Bjorndal, Smithsonian Institution Press
The Biology of Sea Turtles , Ed. Peter L. Lutz, CRC Press
Global Strategy for the Conservation of Marine Turtles, International Union for Conservation of Nature and Natural Resources, IUCN - The World Conservation Union, Switzerland