What do you like to do? Sixth Street (bars and music), South Congress Ave (shops and restaurants), Barton Springs Pool, Circuit of the Americas (no races in July though), lots of concerts, bats at sunset from the Congress Ave bridge, State Capitol, and the Bullock Texas State History Museum in town. Lots of breweries/cideries?/distilleries/wineries nearby. If you're mobile try Fredericksburg, Wimberely, Dripping Springs, or New Braunfels (Schlitterbahn - one of the top water parks in the country). Lot's of good barbecue in Austin and nearby. Lot's of places nearby as well to tube a river, go hiking, or mountain biking.