Everything is bigger in Texas. The state is over 268,00 square miles, with I-10 crossing the Lone Star State from west to east for nearly 880 miles.
So it’s no wonder you’ll find some massive water parks here. In fact, you’ll find the world’s longest lazy river in Texas. When the temperature drops, it can be difficult to find family-friendly activities to keep your kids entertained. That’s where indoor water parks in Texas come in.
Let’s take a look at seven of the best indoor water parks in Texas that will provide your family with endless hours of fun any time of the year!
How hot does Texas get in the summer?
Texas is a huge state. Because of this, the weather varies from east to west and north to south throughout the year. But for the most part, summer temperatures will hover near 90 degrees or higher.
In Galveston, the temperature reaches 90 degrees almost every day. In Waco, the average high in July is about 96 degrees, and in Lubbock you’ll find highs in the low 90s.
What is the largest water park in Texas?
Located in the Houston area, the Schlitterbahn Galveston is the largest water park in Texas. The park is also one of the most visited and features a heated pool with swim-up bar, raft slides, children’s playground, lazy river, body slides, wave pool and more.
Texas’ largest indoor water park is the 223,000-square-foot facility at Kalahari Resorts Round Rock.
The best indoor water parks in Texas
Whether you’re looking for a relaxing lazy river, a thrilling wave pool, or the thrill of cascading waterslides, there’s an indoor Texas water park for you. Children of all ages will be entertained for hours.
Epic Waters indoor water park
Address: 2970 Epic Place, Grand Prairie, Texas 75052
Price: $17 to $59
Hours: Varies from season to season
Epic Waters indoor water park is open year-round, but only on select days during the off-season. For example, in February the park is open on Fridays, Saturdays and Sundays, with the occasional Thursday evening as well.
Generally the park opens at 10am or 11am and closes at 8pm or 9pm. Guests have access to water slides, a wave pool, a lazy river, and a children’s pool. There’s also an arcade, gift shop, cabana rentals, and dining options.
Kalahari indoor water park
Address: 3001 Kalahari Blvd, Round Rock, TX 78665
Price: $34.99 to $59.99
Hours: 10am to 8pm or 9pm depending on the day of the week
Kalahari Resorts and Conventions has locations in Texas, Pennsylvania, Wisconsin and Ohio. Accommodations include single rooms, two-bedroom suites, and three-bedroom suites.
But you don’t have to stay on property to enjoy the indoor water park. You can purchase a day pass to gain access to 223,000 square feet of wet and wild fun. There are mat slides, tube slides, a lazy river, a swim up bar, a children’s pool and more.
Great Wolf Lodge indoor water park
Address: 100 Big Wolf Dr., Grapevine, TX 76051
Price: $50 to $100 for a day pass
Hours: 9am to 8pm or 9pm depending on the day of the week
Though there are locations across the country, Great Wolf Lodge in Grapevine, Texas has a four-story treehouse with slides and toys, a wave pool, lazy river, raft slides, hot springs, and more for the whole family.
Like Kalahari, you don’t have to stay on-site to gain access to the indoor water park. You can buy a day or half-day pass and still enjoy hours of family fun.
splash hut
Address: 1801 Clover Ln, Cedar Park, TX 78613
Price: $4.99 to $19.99
Hours: 10:00am to 6:00pm or 12:00pm to 6:00pm depending on the day of the week
Splash Shack is offering a free adult ticket with the purchase of a child ticket. This is because the indoor water park is suitable for children from 1 to 10 years old. The 10,000-square-foot building has a central structure resembling the Great Wolf Lodge, with multiple slides and a large dump bucket.
Ideal for younger children as there is no depth of water so families can feel safe visiting Splash Shack even with the little ones. The park is closed on Mondays and Tuesdays.
Keep in mind: While you are in Texas you cannot miss to visit the Blue Lagoon
The Bay
Address: 417 Lakefront Dr, Little Elm, TX 75068
Price: $11 to $18
Hours: Varies depending on the day of the week
The Cove is open Monday, Wednesday, Thursday and Friday from 4pm to 8pm, Saturday from 10am to 6pm and Sunday from 12pm to 6pm.
The Cove offers toddler time on Monday and Thursday mornings and an hour of lap swimming Monday through Thursday from 4pm to 5pm. It’s the perfect indoor water park for all ages, with a splash pool for preschoolers, two slides, an interactive play structure for school-age kids, and a lazy river for adults.
NRH2O family water park
Address: 9001 Blvd 26, North Richland Hills, TX 76180
Price: $16.99 to $27.99
Hours: Varies depending on the day of the week
NRH2O Family Water Park offers discounts for military, seniors and residents. There are enclosed slides, raft slides, a 5,300-square-foot pool, a five-level interactive water playground, a lazy river, and more attractions for everyone in your family. There are also numerous restaurants ranging from quesadillas to pizza to funnel cakes.

Water park at The Villages
Address: 18270 Singwood Ln, Flint, TX 75762
Price: $16.95 to $19.95
Hours: 12:00 p.m. to 8:00 p.m., only from Friday to Sunday
The Wild and Windy Waterpark includes a lazy river, wave pool, slides and children’s playground. The park offers a discount for twilight hours and special rates for members.
Holiday Inn Vacations Villages Resort guests do not have free access to the indoor water park but receive a discounted rate.
Where is the largest lazy river in Texas?
According to a local Texas news station, Waco Surf at 5347 Old Mexia Road in Waco, Texas not only has the largest lazy river in Texas, it also has the longest lazy river in the world.
You will also find water slides, a private beach area and a surfing lagoon. Individual day passes range from $39 to $59.
What is the cleanest water park in Texas?
According to Splashway Waterpark, it is the cleanest water park in Texas. The Clean Team works diligently to ensure there is no debris on the ground to keep the park looking beautiful.
In addition, the team is disinfecting door handles, tables, railings and other high-contact areas throughout the day.
In addition to the Clean Team, Splashway Waterpark also uses UV filters in the water for an extra clean experience. According to the website, “Our water is treated with chlorine, but it’s also treated with UV filters!
UV filters work by interfering with the DNA and RNA of certain organisms, such as viruses, which in turn kills or inactivates the virus completely. By using chlorine and UV filters, we kill even the most microscopic bacteria that may still be present. Splashway Waterpark is one of the few water features in Texas to use this technique!”
Keep in mind: Did you know you can make Texas your legal residency as a full-time camper? Click the link to learn how!
Where is the largest water slide in Texas?
Schlitterbahn Galveston has the largest water slide in Texas while Aquatica San Antonio has the tallest tumble slide. The massif at the Schlitterbahn Galveston, certified by Guinness World Records, is 25 m tall.
Guests climb 123 steps to reach the top, which is a whopping 81 feet tall. Ihu’s Breakaway Falls at Aquatica San Antonio is 80 feet tall. After the initial dramatic vertical jump, you’ll follow a maze of curved tubes before splashing into the pool below.

Get soaked in Texas this summer
Whatever the season, your family can make memories at these indoor water parks in Texas.
Float on a lazy river, sip a drink at a swim-up bar, and scream down a body slide. Whether you’re looking for thrills and excitement or want to spend a lazy day at the wave pool and kiddy pool, these indoor water parks in Texas offer hours of family fun!
When do you go to an indoor water park?