The 13th hole adds some length from your first go at this hole. With a longer tee shot and the tendency to have the white flag tucked to the left this could be the most difficult tee shot you face in your round. The trees are blocking your view can play havoc with your score as a ricochet can go anywhere including over the boundary fences.
Remember “Red” is the front nine and “White” is the back nine. If you make a hole in one at the “wrong” flag just place your ball next to that hole and putt to the correct one, while ruing the “ACE” you almost had.