Which wine should be paired with that food? Do screw-tops or corks work better? How exactly do you pronounce "viognier"? If you'd like to learn more about wine, be curious and fire off questions at Bodega Santa Ana.
You're spoiled for sightseeing choice when staying in Guaymallen. Bodega Santa Ana is a good place to start here, but there are plenty of other fine sights to experience. Independence Square, General San Martin Park, and Malvinas Argentinas Stadium are near the wine-making establishment and will fill in your day nicely.