San Antonio is a nice city. Mrs Snarf and I enjoy spending a couple of days down that way when we can. We usually do the touristy stuff though. Like I think MikeS said, there's nothing on a summer night like hanging out on the River Walk. We've got friends that live there that love it. Also, if you hit any of little taquerias that are all over town, you can get the best b-fast tacos in the world.
As some of the others have mentioned, the heat down here can really surprise folks that aren't used to it. Unlike a lot of places in the country, the sun going down doesn't give much respite from how hot it is. It gets dark, and it only cools off 15 or so degrees some nights. So, if it's the middle of August and hits 105 during the afternoon, it's still going to be 90 degrees outside at midnight, and the overnight low is going to be about 87 at 6a the next morning when the sun comes back up. Sometimes August can be like living in a blast furnace.
we talked about retiring to Lockhart or Gruene
In a former life I spent several months living in Lockhart trying to save my boss' business there. I don't guess I actually lived there, because my address was still home, but I spent more nights there than I did at home. I hated Lockhart. Could've been the fact that I was living out of a motel there in town and 16 hour days were the norm. That business eventually closed, got sold, torn down, and I think they built either a Family Dollar or a Dollar General where it was right there on Colorado where the Bastrop Highway comes into town. On the upside, 130 runs through there and you can legally do 85 on it, so you can get to SA or Austin pretty quickly.
Gruene, otoh, I love. That's where I first got Rudy's BBQ (before they expanded all over the state). Also, I believe you can't call yourself a true Texan until you've attended at least one show at Gruene Hall (I'm joking...sort of
). Happened to be passing through there about 15 years ago and was having dinner at the Gristmill next door when I found at Gary P Nunn was playing that night. That's about as TX as you can get. Great CFS for supper and then Gary P Nunn at Gruene Hall to close the night. It did make for a loooong drive back to FW that night though. "I want to go home with the armadillo..."