Rent a Car in San Antonio

The historic core — the Alamo, the River Walk, La Villita — is compact and easy to cover on foot, and the River Walk's shaded paths make sightseeing simple without a car for a day or two. But San Antonio spreads out fast beyond that core: Six Flags Fiesta Texas and SeaWorld San Antonio both sit on the northwest side, roughly 25–30 minutes' drive, and neither is realistically reachable by transit with kids and bags in tow.

The real case for a hire car is Texas Hill Country. Fredericksburg's wineries and German-heritage town centre are about 90 minutes north-west, New Braunfels and the Schlitterbahn water parks are 45 minutes north-east, and Natural Bridge Caverns sits roughly 30 minutes north. Austin is under 90 minutes up I-35, making a San Antonio–Austin loop a realistic long weekend if you want both cities without checking out of a hotel.