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THE largest indoor waterpark in America is set to undergo a huge multi-million-pound expansion with new water slides, pools and cabanas planned.

Dubbed the 'Waterpark Capital of the World', Wisconsin Dells is a city in southern Wisconsin that's home to over 20 indoor waterparks and theme parks.

Illustration of a water park expansion with multiple slides.
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Kalahari Resorts & Conventions in Wisconsin Dells is set to double in sizeCredit: kalahariresorts
A mother and son ride a water slide at a water park.
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The existing waterpark at Kalahari Resorts & Conventions in Wisconsin Dells already features waterslides and poolsCredit: Kalaharirresorts
Waterpark with colorful slides.
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The waterpark at Kalahari Resorts & Conventions in Wisconsin Dells is the largest indoor waterpark in AmericaCredit: Kalaharirresorts

The area is about to expand its offering because the waterpark at Kalahari Resorts & Conventions in Wisconsin Dells is set to double in size.

America's largest indoor waterpark is set to benefit from a huge $85million (£70million) expansion.

The expanded waterpark will feature three new waterslides, a large spa pool, a children's play area and cabanas.

Both the Wild Wildebeest and Green Python waterslides will have six-person raft slides, while the Cheetah Mat Racers will be a four-lane racing slide.

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According to , the new waterslide attraction will start on a platform that's 70ft tall.

Spread over 75,000 square feet, the huge new waterpark will be open year-round thanks to a huge retractable roof, which will provide cover from the elements.

Other new attractions include a Watering Hole Pool with tanning ledges, a Coral Cove Kiddie Slide Pool and a swim-up bar for adults.

Slated to open in 2026, the expansion will double the size of the existing waterpark.

The American resort recently opened a series of other new amenities, including 237 new rooms, a renovated spa, a brand-new splash pad and a dry playground.

Its lobby was also renovated, with two new dining options also being added to the sprawling resort.

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Todd Nelson, the owner and founder of Kalahari Resorts, said: "Kalahari could not be more excited to announce this indoor water park expansion in the Wisconsin Dells, the Waterpark Capital of the World.

"With new slides, pools, a swim-up bar, spas, and more, there's something for every member of the family to enjoy."

The sprawling American resort in Wisconsin also has an indoor theme park, a spa and a golf club.

The waterpark has a 4/5 star rating on TripAdvisor from thousands of reviews, with one person writing: "I had an absolutely amazing stay.

"The staff were so friendly and helpful, the hotel was very clean, the beds were comfortable and the waterpark was great".

Another person added: "This place is big and has pretty much everything you need in one area".

While a third wrote, "The entire resort was clean throughout our stay, all of the staff members were very friendly, and we really enjoyed the waterpark".

The UK is also set to get a huge new £250million indoor water resort featuring 25 pools, a beach and swim up bars.

First announced back in 2020, work is slated to start on Therme Manchester in 2025.

The new water attraction will be located next to the Trafford Centre and will feature 25 swimming pools, 35 water slides, an all-season indoor beach, adults-only zones and swim-up bars.

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Five new water attractions opening in the UK

  1. Therme Manchester will have 25 swimming pools, 25 water slides and an indoor beach.
  2. Modern Surf Manchester will be a surfing lagoon offering lessons to both beginners and experts.
  3. Chessington World of Adventures Waterpark is set to have wave, infinity and spa pools as well as waterslides and cabanas.
  4. The Cove Resort, Southport is likely to have a water lagoon and a thermal spa with steam rooms and saunas.
  5. The Seahive, Deal plans to be the "surfing wellness resort" in the UK.

Meanwhile, this waterpark is opening in Europe in spring, with first-of-their-kind slides and wave pools.

And this £14m waterpark is hoping to reopen in the UK.

Indoor water park with slides and animal-themed decor.
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The waterpark has a 4/5 star rating on TripAdvisor from thousands of reviewsCredit: Kalaharirresorts
Man going down a water slide at a water park.
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The expansion will cost £70millionCredit: Kalaharirresorts
Illustration of a large indoor water park with slides and a pool.
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The expanded waterpark will feature a three new waterslides, a large spa pool, a children's play area and cabanasCredit: kalahariresorts
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