It is the southernmost bay in Texas , about 1 mi ( 1.6 km ) north of the Texas - Mexico Border .
South Bay is a bay in the Laguna Madre in Texas separated from the Gulf of Mexico by Brazos Island .
South Bay is the southernmost bay in Texas , about 1 mi ( 1.6 km ) north of the Texas - Mexico Border .
South Bay is a bay in the Laguna Madre in Texas separated from the Gulf of Mexico by Brazos Island .