All species of sea turtle dig an egg chamber equal to the length of their rear flippers and excavate a body pit whilst doing so (Bustard 1972). They will use all four flippers to excavate the body pit and then just the rear flippers to dig the egg chamber. Depth is dependent on the species, for Loggerhead and Green sea turtles it is approx. 60-70cm deep. Once complete she will begin to lay her eggs, this will take approx. 20 mins, it is believe they go into a trance like state during this period, however they can still be disturbed and may abort the process if they feel threatened, once she has finished she will then fill in the nest with her flippers before returning to the ocean to rest.