I will probably be in Austin, TX, on business and have the entire day of Tuesday, April 19th, free. I'm strongly considering renting a bike from Cowboy HD out on I35 for the day. Looking for suggestions on where to go. I've heard of the Three Sisters but that looks like it might be a lot to try in one day from southeast of Austin. I've also heard that Fredericksburg and Luchenbach (hope I didn't butcher the spelling) are must see places. Let's hear some ideas!!