Zilker park in austin is quite large, inside of the park you have Barton Springs, not to get confused with Barton Springs Pool. They are definitely different. The springs is where I went, you can find hidden among the springs, places to jump off, swings tucked away in the trees, and if the crowd is your thing you can find the more populated and formulated areas as well. I went to both types of areas, the swings that we found were great and right by the main area. There was a line but I was ok to wait in the line. After we swam for the day, I grabbed some tacos from a local food truck and went back to the Extended Stay America hotel.