Over 90% of turtle nests are predated by foxes or other animals, this level of predation is unsustainable. You can help prevent this loss of recruitment by protecting any nests you become aware of. There are two methods you can undertake, temporary and permanent.
The basic difference is that the temporary protection will not allow the hatching to emerge for the nest when the hatch, where as the permanent protection will.
It is important to act quickly as we know of cases where people have gone to get something to protect a nest only to return shortly after to find it dug up.