If the little ones are getting fidgety, visit Austin Childrens Museum. With plenty of hands-on exhibits and displays, this attraction makes learning exciting.
You're spoiled for sightseeing choice when visiting Downtown Austin. Austin Children's Museum is a great place to start here, but there are numerous other interesting spots to visit. University of Texas at Austin, Texas State Capitol, and Zilker Park are near the interactive exhibit for kids and will fill in your day nicely.