Personaly if you dont know the area from cullen park to the bay area I would launch from Meinkes W. or state ramp,bait shops close by plus you wont have to drive vehicle too far. There are numerous rock piles between shipping channel and fishing area,I usualy start 1/4 mi east of little cedar 6fow.
, a good chart plotter will show those rock piles. Also dont forget the humps between Turtle Island and harbor light. Just my thought.