The primary way to enter Rockport is via Corpus Christi then Portland. Take Highway 181 to 35, in Rockport turn on Business 35. It's approximately 3.5 hours south of San Antonio. Be careful, the roads seem to be heavily patrolled by police.
There is also a very nice airport near Fulton, just a few miles north, though Corpus Christi is the nearest commercial airport. Many of the major airlines fly into Corpus, though most flights originate in Houston or San Antonio.
