Welcome aboard, Charlie! I hope you enjoy your time here. What part of the UK do you hail from? Spent three years at RAF Lakenheith (near Thedford) back in the early '70s. Our oldest was born there and we call her our English "souvenir". Even though she carries dual citizenship, I understand that no matter what she does, she will always be considered a "subject of the Crown".
Can't help you a lot with your question. We don't care a great deal for the Texas coast and don't spend much time there. I will say that I've been to Mustang Island State Park and it is very nice and should meet all your needs. I've also heard some good words about Goose Island State Park but I haven't been there.
November is a pretty good month for camping in Texas. The "critters" are on the decline and they shouldn't bother you a great deal.
I've included two links that should help and I hope others will chime in here and be able to furnish more info. No matter what, I hope you have a great trip! Again, welcome to Texas and,
Happy Camping!
TPWD: Mustang Island State Park
TPWD: Goose Island State Park
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Turn Key, DW and Pepsi & Cherry, The Camping Boston Terriers
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