Most of the South is HOTT (extra T for emphasis) in the summertime. I (Sarah) am originally from Bristol, TN and though it gets hot in the summer months, I was in for a rude awakening when we moved to Georgia. Now that I have littles, I am always on the hunt for activities for them that are engaging and fun for the whole crew. I have rounded up 5 Summer activities geared towards toddlers:

Find a splash pad and be a regular. These little water-splashing, concrete pads are a toddler oasis. Not to mention, there are usually some cool mom pals that you can ~~stalk~~ befriend. If you find yourself in the ATL area, the Atlanta Zoo near Grant Park has a lovely splash pad.
Puppet show or Playhouse. This is one of our very favorite things we have done in the city. Most larger cities will have them and they are a wonderful way to take up a morning. The Center for Puppetry Arts is the place to be if you are near Atlanta. I think I enjoyed the show as much as my toddler!
Find a large, open indoor space with air conditioning and let them roam free (while staying two feet from them always, of course). For you, this might be a mall or an area gym. For us, this is most certainly Ponce City Market. We like to go super early in the A.M. before it gets crowded and make laps around the food hall. My best mom friend and I grab a latte and spend the next hour or so chasing some toddlers around in circles. It's glorious.
Bring the toys to the park! This is one of our new favorite pastimes. Maybe everyone has been having a blast doing this all along, but we are fairly new to this club. If your kid is like mine, I spend 98% of our time at the park chasing him around and rescuing him from falling off the "big guy" slide. Enter bulldozers, dumptrucks, and toddler golf clubs. I throw them in the stroller and no joke, my almost three year old will spend nearly an hour digging in one spot. ALL THE PRAISE HANDS!
The Farmers Market. This is a weekend go-to for our family. Nearly every city will have at least one, so just do a quick Google search. Ours normally sports live music, fresh treats, and all the puppies that one toddler can handle.

What are your favorite Summer activities?