San Antonio is approximately 80 miles southwest of Austin via I-35 and three hours west of Houston via I-10. Spend a day or an evening strolling along the famed River Walk or nearby Market Square, stopping along the way to shop or grab a bite at one of many fine restaurants. Visit the Alamo, Texas’ top tourist attraction. The whole family will enjoy the San Antonio Zoo, SeaWorld San Antonio, Six Flags Fiesta Texas, and the Splashtown San Antonio water park. Root for the hometown San Antonio Spurs basketball team. San Antonio is home to three large military bases - Fort Sam Houston, Lackland Air Force Base, and Randolph Air Force Base.