When they aren’t migrating, sea turtles are content to live in a given location. They will travel around a certain area looking for food. The home area of a sea turtle will commonly overlap with that of many others. While they are loners so they don’t group together, they don’t seem to mind sharing the territory with other sea turtles.
Where you will find the sea turtles in the water really depends on their age. For example the adult sea turtles are commonly found in shallow waters including bays and lagoons. They can also be found in the open sea as many of the species can dive deep down into the water to find food.