If you like spending time outside, why not spend the afternoon at Inner Space Cavern, a park located 23.7 mi (38.1 km) from the center of Austin. If you like Inner Space Cavern, you'll love Round Rock Multipurpose Complex and Chisholm Trail Crossing Park, both just a short drive away.
After visiting San Gabriel Park, make a plan to see the other sights and activities in Georgetown. Visit the shops or attend a sporting event in this family-friendly area.
Though St. David's Georgetown Hospital might be what brings you to town, perhaps you'll have a chance to explore more of Georgetown while you are here.