It's National Catfish Month!   through August
The dog days of summer can mean only one thing - it’s time to celebrate America’s favorite fish. You’ll be grinning from your gills to your tail fin when you check out the catfishy fun at the Aquarium during August. http://www.tnaqua.org/VisitorInfo/Catfish_month.asp

Pirates of the Tennessean . . Aarggg!    through mid-September
Discover the True Treasures of the Sea! All aboard for a wave-crashing adventure when the Tennessee Aquarium uncovers mysterious treasures o' the sea, like the amazin' creatures that inspired the movie “Pirates of the Caribbean: Dead Man’s Chest.” http://www.tnaqua.org/VisitorInfo/Pirates.asp

Narrated dive shows at the Tennessee Aquarium -DAILY - 11 a.m., 11:30 a.m., 2 p.m., 2:30 p.m.
Home to enormous sand tiger sharks and thousands of colorful reef fish, the dive shows in the Secret Reef exhibit at the Aquarium are the catch of the day. Visitors on the dry side of the tank get to talk to a diver on the wet side while "dive buddies" scan the sea scene with shark "bump sticks" just as a precaution. Guests will learn about the myths and mysteries of some of the most feared animals on earth with special emphasis on saltwater habitats and the importance of the coral reef community. (SPECIAL NOTE – Due to the dangerous nature of the feeding behaviors of the sharks, these will NOT be feeding dives.) Free with regular admission to Tennessee Aquarium www.tnaqua.org.

Remember drive-in movies? through August
Lawn chairs and blankets scattered on the ground or the car on warm summer evenings? Giant boxes of Raisinettes, M&M's and Milk Duds. Backseat smooching if the movie was bad — or even if it was good? The Wilderness Outdoor Theater, a new drive-in, features the world’s largest single-screen outdoor theater. Located on a terraced hillside on the Georgia side of Chattanooga in Trenton, just 15 minutes from downtown, the theater has enough room for a thousand cars.

Open-air market on Sundays is a feast for the senses — through August
When you visit the Chattanooga Market, you'll find still-warm bread from local bakeries, just-picked produce that is thousands of miles fresher than most store-bought stuff (and tax free), live music, artists and artisans selling things they've made in and around Chattanooga, live chef demonstrations from some of our finest restaurants, farm-fresh free range eggs, meats and more just waiting to entice you. The Chattanooga Market is a weekly open air market (with a covered “lid”) in downtown Chattanooga (Southside) noon to 5 p.m.

Sea life in 3D six stories tall — All Year
So real, it's unreal! In the massive six-story-high IMAX 3D Theater you feel like you're in the movie, not just watching it. Have astonishingly up-close 3D encounters with giant Pacific octopi and whale sharks the size of school buses. Or prepare yourself for a Harry Potter adventure complete with fire-spewing dragons. In the fourth in the Harry Potter film series, "The Goblet of Fire" IMAX film makes you feel like you’re part of the action especially when you attend the Quidditch World Cup. (3D glasses not necessary for Harry Potter film)

Take me out to a ballgame and fireworks — through August
Regardless of your home team, there are some things nearly all baseball fans love: the snap of the bat, the smell of the freshly cut grass and the sizzle of the grill when it delivers up the dogs.

With all the traditional fun of a minor league game, the Chattanooga Lookouts batter-up in the beautiful BellSouth stadium next door to the IMAX Theater. Ball games when there are fireworks to dazzle the fans turn any home game into a holiday. Check out the calendar to see which dates have sky lighting.

Free Friday outdoor concerts in the park feature the best of rock, pop, country & jazz — through August
Summer sings downtown. Every Friday night is different – Sometimes it’s rock, blues, jazz, reggae, zydeco, funk, bluegrass or folk music but it’s always fun and it’s always free.

The Nightfall concert series is a downtown Chattanooga summer tradition for the past 19 years. So hop aboard one of the free downtown electric shuttles and head to Miller Plaza. All you need is a blanket or towel to sit on. The Miller Plaza stage heats up with a local opening act at 7 p.m. The headliner opens at 8 p.m.

Downtown Pops — through August
Enjoy an evening at Coolidge Park listening to pop and patriotic music. This series of free concerts is scheduled for the first Saturday of each month from June through September, sometimes extending into October. This seven-acre North Shore park is situated near the Walnut Street Bridge. Come by and ride the carousel featuring hand-carved animals (rides available 11 a.m. to 7 p.m. Friday and Saturday). Children love playing in the interactive fountain. Water spurts out randomly sending kids into a crazy frenzy and keeps them entertained while you take in the concert. The fountain is open daily 8am to 10pm.