Discover is your guide to Dining, Shopping, Entertainment, Local Favorites and Day Trips! San Antonio and Austin are only 45 miles from each other, so take a day to go visit one of these great Texas cities while you are in town. San Antonio, the 7th most populous city in the US, is known for it’s rich history and popular Riverwalk, a great place to dine, shop and visit the local attractions. Austin, the Live Music Capital of the World, is home of the University of Texas, the State Capitol, and a vibrant downtown scene.