We have lived here over 5 yrs and never done Barton Springs. So on a whim I just put the kids in the car and we went. It was less than $6 to get us all in (cheaper than local swimming pools) and it was so beautiful. I have some pics but trust me it doesn't do this place justice. I love living in Austin. We have the most wonderful unique things to do. The water is ice cold which makes it extra refreshing on a hot summer day. And it IS legal to swim topless. So the kids got to see some boobies while we were there.