All of it !! The fish are not in a designated area
Walk down the beach ( fishing along the way ) to narrow river then fish the outlet . When U R done fish the beach again on the way out and if you are still want to fish walk to the CG house and fish from ther and if U still want to fish some more keep walking to the peir at the end of the wall , that should be more than enough for anyone .
As far as all these questions go , It is kinda like this =
SO GET OUT AND FISH ALREADY !