Austin has 12 off-leash dog parks, but only 1 fenced-in, off-leash dog park (Norwood Estate).
Here's the list:
City of Austin - Parks and Recreation Department: Dog Parks
Atlanta, has 30 fenced-in, off-leash dog parks.
Here's the list:
Georgia Dog Fun - DOG PARKS
At first, I was taken aback, but what I've liked about Norwood Estate is what I'm coming to LOVE about Austin--Because there is only 1 place to go that is fenced, more people go there. It's more accessible, it's more personable, and you get to know "your neighbor" because you see the same faces.
Norwood Estate is cool because it's flanked by the river downtown and there is always something going on at the nearby park (e.g. boat regattas, races, family events, etc.) or road races that are running, walking, bicycling nearby.
One of my dogs likes to explore, so I'm afraid that she'll wander off.
One of my other dogs likes to follow, so...