Once it gets hot, figuring out where to take the kids becomes its own kind of stress. You want somewhere that works for the ages you’re dealing with, isn’t a total circus, and doesn’t cost a fortune. Cobb County actually has a lot of good options across the city but it’s just not always obvious which ones are worth it until you’ve already tried a few.
Here’s what I’d point you toward.
Sewell Park Pool
📍 2055 Lower Roswell Road, Marietta
🕚 Daily: 1 p.m.-6 p.m.
💰 Youth: $3.50 | Adults: $4.50
A good fit for a wide age range thanks to the combination on offer here. It features shallow and deep water with a diving board, plus a zero-depth splash pad in the pool area.
Younger kids can stay in the splash zone while older ones use the deep end and diving board, so you’re not trying to manage everyone in the same space. The surrounding park has baseball fields, tennis courts, and trails. Runs through early September, and the admission is reasonable enough that the long season makes this an easy default pick.
Swift-Cantrell Splash Pad
📍 3140 Old 41 Hwy NW, Kennesaw
🕚 Memorial Day–Labor Day: Mon, Tue, Fri, Sat 10 a.m.–6 p.m. | Closed Wed (maintenance), Thu and Sun (rentals)
💰 $3 per person | Free for ages 2 and under | Card only
More interactive than most splash pads. The 3,200-square-foot pad features a fountain spray, ground geysers, jet streams, magic mist, and sea creature silhouettes.
Best for younger kids, and the surrounding Swift-Cantrell Park adds a lot, a full trail loop, skate park, and playground for older siblings who aren’t interested in getting wet. Free entry on Labor Day. After July 31, it shifts to weekends only, so plan weekday visits before then if your schedule allows.
Thurman Springs Park Splash Pad
📍 4485 Pineview Dr, Powder Springs
🕚 Daily: 12–8:30 p.m.
💰 Free
A free splash pad on the west end of the county. It includes a fountain and play area with a climbing structure alongside the splash pad.
Best for younger kids, and a good option for Powder Springs and west Cobb families who want something close without paying admission. Runs through the summer with no registration needed, just show up.
Seven Springs Water Park
📍 3820 Macedonia Road, Powder Springs
🕚 Sessions: 12–3 p.m. and 4–7 p.m.
💰 Adults: $6 | Children 3–17: $4 | Seniors 55+: $3
An outdoor water park inside Wild Horse Creek Park, and the most full-featured water destination in the county. It has two water slides, a lazy river, a splash pad area with zero-depth entry, an outdoor leisure pool, and concessions on-site.
The zero-depth entry works well for toddlers, while the slides and lazy river give older kids enough to stay entertained. The timed session format — two three-hour blocks per day — keeps crowds manageable, but it also means you need to plan ahead rather than just showing up whenever. No outside food or drinks allowed, so factor that in before you pack a cooler.
East Roswell Sprayground
📍 9000 Fouts Road, Roswell
🕚 Tue–Sat: 10 a.m.–5 p.m. | Sun: 12–6 p.m. | Mon: Closed | Season ends August 2
💰 Free
A free sprayground on the east side of the county, and a solid option if you’re in the Roswell area and want something low-effort for younger kids. The entry is free and no registration required. Worth knowing before you go: the season wraps up on August 2, which is earlier than most, so don’t sleep on it if you’re planning to go in late summer. It’s also closed on Mondays, so keep that in mind when picking a day.
South Cobb Aquatic Center
📍 875 Riverside Parkway, Austell
🕚 Mon–Fri: 6 a.m.–9 p.m. | Sat: 9 a.m.–5 p.m.
💰 Check cobbcounty.gov for current admission rates
The year-round indoor option for the south and west side of the county. It has a large pool with multiple lanes, diving boards, family swim areas, swim lessons for all ages including adults, and changing rooms with accessibility features.
Good for a mix of ages, and being open year-round makes it a dependable fallback well outside the summer season. Parking can be an issue during peak times, so arriving a bit early helps, especially on weekday evenings when it tends to be busiest.
As a Cobb County real estate agent, one thing I tell people is to actually use the parks system here. It’s a wonderful resource and a lot of people don’t fully take advantage of it.
Pick something from this list and get out there. You have everything you need right here.
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