I'll be in South Austin for three days in June with a 17 year old and no car. We're excited about the trip and have lots of things we'd like to see and do during the daylight hours. However, I'm kind of stumped about where I can take her at night. I assume that because she's under 21, music clubs are out. Do you have any ideas?

It depends on where exactly in South Austin you're going to be. The South Congress area and Zilker Park are technically South Austin, but are very close to Downtown.
Austin's a difficult town without a car, especially outside of Downtown.

We'll be staying at the Wyndham Garden. I'm told that it's not too far from a Dillo line.

You should be able to get to the SOCO area which is lots of fun. You can go to Gueros Taco Bar and they usually have music on the weekends for the under 21 crowd. You can also go to Ruta Maya which is a really good option, they have music and its just a good hang out spot. HOw about a movie at the very cool Alamo Draft House...a unique movie theater that serves food with your movie. Check out these links for info. All of these places should be on the bus line
www.guerostacobar.com
www.rutamaya.net
www.drafthouse.com
For the bus and dillo schedule go to www.capmetro.org
Have a great trip

Thanks very much, Kym; those are great ideas. I'll check out the websites.