ADG Project Solutions: Design/Build Outdoor Waterpark
Size: 30-acres

Design and build the largest waterpark in U.S. history, providing complete turnkey design, engineering and construction. ADG’s objectives were to design/build a 10,000 person capacity waterpark across 30 acres and develop amenities that increase time on premises and per cap spending.


Utilizing existing topography, ADG helped eliminate costly clearing and earthwork with minimum contour changes, retaining 75% of the mature oak trees on site. The park layout was developed around a core village island, creating a cross-axis circulation pattern allowing guests to easily travel between food and retail kiosks, restrooms, lockers, tube rentals and attractions.

ADG designed and built the park to include 14 high-speed thrill slides, a 45,000 sqft wave pool, 2-story play structure and 2,500ft lazy river. ADG preserved existing vegetation and site lines by setting features within lush landscaping and themed architecture

Hurricane Harbor remains one of the largest waterparks in the U.S. Exceeding the desired 10,000 person capacity, ADG was able to seamlessly integrate 30 acres of attractions with many amenities and support facilities to satisfy the wants and needs of up to 11,000 guests. Creative design and layouts maintained the synergy and feel of a small park setting within Hurricane Harbor’s sprawling grounds.


As the original designer and builder of the Six Flags Great Adventure Hurricane Harbor, ADG designed and built the Calypso Springs expansion - marking one of the many expansions over the last 19 years that the park has undergone working with long-time partner, Aquatic Development Group.  

The key features of Calypso Springs include massive, 100,000-gallon beach entry-style pool, obelisk-style fountain with spontaneously erupting geyser, giant, open lounge deck with hundreds of chairs for sunbathing, oversized umbrellas for respite from the summer sun, charming Bimini shade covers available for rental; and a new dining location. ADG also supplied all the necessary filtration for the pool.

Hurricane Harbor is an industry leader with best-in-class water slides and spectacular, interactive family attractions, and in 2019 we are excited to debut our largest new addition to date with Calypso Springs. This enormous, new pool, expansive lounge deck and dining area will offer the perfect place to enjoy signature, Six Flags summertime thrills.

John Winkler, Park President
Six Flags Great Adventure

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