And if you drive another hour and 1/2 south, you get to see the world's largest right here in Atlanta. Actually, I've been to both and they are both good. The last time I was at the TN aquarium, they were having a jellyfish exhibit with blacklights.....That was pretty cool. They also had a little round pool where you could pet the sturgeons that are native to the TN river. Chatanooga is a neat city. We did IMAX while we were there, but we also have that here in ATL. I've always wanted to do the trainride up the mountain. If you haven't done it, Rock City and Ruby Falls are close by and both worth saying "been there done that".
Have fun and take lots of pics!