South Beach, Mile 0-5, Padre Island, TX
In addition to obtaining a free camping permit, you must also pay the entrance fee, which varies at 1-day, 7-day, and annual pass. The Interagency Pass also works here.
The sand here is generally firm packed, however depending on the weight of your RV or trailer, it could sink in. We found many RVers will bring strips of plywood to drive over and park on. However, be aware that the tide will come in, and you will want to move. Keep your trailer hitched and ready to move at a moments notice.
Also steer clear of the sand dunes because the sand is more soft there.
It’s also a good idea to bring some tow rope in case you need to ask someone to pull you out.