A few thoughts...
1. Brown and Root Flats/Aransas Causeway. Take the ferry over toward Aransas, then immediately take your first left into the sand. You will see a "tail" to the water, and on the back side of the water, there is a very rectangular area known to locals as the "football field." Walk around that, and there is a small channel you will need to wade across. Fish your way west from there, there is a lot of mud and shell, and in the western part of that stretch, there is a sunken boat. Around the point is a tough wade due to shell but then you can go directly southwest and there is a small gut. Good spot unless the dolphins show up.
2. Shamrock. Across from Port Royal is the entrance to Shamrock, and if you check google maps there is a mud hole to the northwest, redfish. If yoiu have a kayak you can be there in 5 minutes. Lots of stingrays.
3. Power lines. I never had a lot of luck here but lots of my friends have. Go to fish pass and drive through the back roads toward the power lines. Good wade with potholes.
Post reports if you can and good luck.
EDIT: If you go to Google Maps you can see the boat and the guts I am talking about on Sat view.
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