Laying eggs of a sea tutle

The female sea turtles are faster in the sea but they are very slow when they come ashore. The male sea turtles never come out from the sea. Only females come to the surface to lay eggs in the night. They lurk in the beach to find a place where they will do their nest. They dig in the sand a hole of 50 to 60 cm depth with their fore flippers. They lay from 50 to 200 eggs which look like golf balls. When the egg is layed the female sea turtle covers the eggs with sand. And then they remove the traces of the nest with their fins.
The nesting can take between 1 and 3 hours, the laying can be done from 20 to 40 minutes. When the laying is completed the sea turtles go back to the sea. But some turtles are disoriented and they die.