You must live pretty close to the banks of a stream or marshy area.
I saw this regarding snapper incubation.
✅ Hatching. Hatchlings will emerge from their soft shells 55 to 125 days after the mama snapping turtle lays the eggs. The time to hatching is longest in the northern part of the snapping turtle's range. Generally, incubation takes from 75 to 95 days, and hatchings emerge between August and October.