I found big adventure and warm weather in these national-park units spread across the Southeast and Southwest ...

several parks and the Gladys Porter Zoo. Unlike Port Isabel, Brownsville is not linked to South Padre Island by public transportation and because it's a larger city, having a car will come in handy.

South Padre Island, is a well-known spring break destination, Padre Island offers a calmer seaside getaway near Corpus Christi. In particular, travelers rave about the island's national seashore ...