Tucked under the enormous glass dome of the American Dream mega-mall in East Rutherford, New Jersey, Thrillagascar and Jungle Jammer are a pair of trap-door drop-capsule slides that plunge from 142 feet — making them the tallest drop-capsule water slides in the world, and almost certainly the tallest water slides ever built indoors.
Both slides launch from the same lofty platform inside DreamWorks Water Park, where riders step into a clear capsule, cross their arms, and wait for the floor to vanish beneath their feet. That 142-foot figure beats even the famous 125-foot trap-door slides at Universal’s Volcano Bay in Orlando.
Key Stats
| Height | 142 ft (43.3 m) |
| Opened | October 1, 2020 (with the park) |
| Type | Trap-door drop-capsule body slides |
| Park | DreamWorks Water Park, American Dream — East Rutherford, New Jersey |
Two Slides, One Record Platform
Thrillagascar carries a Madagascar theme — DreamWorks’ animated franchises run through the whole park — while Jungle Jammer is its twin thrill on the same tower. Both are officially classed as drop-launch capsule slides: instead of pushing off, riders are sealed into a capsule whose floor drops away, converting 142 feet of height into a near-instant freefall start. Universal’s own materials acknowledge the ranking — Volcano Bay’s Ko’okiri Body Plunge and Kala & Tai Nui slides are billed as the second-tallest drop-capsule slides in the world at 125 feet, behind these two.
Inside America’s Largest Indoor Water Park
DreamWorks Water Park opened on October 1, 2020, after a saga of pandemic-era delays — an announced March 2020 opening was scrapped just weeks before the mall itself temporarily closed. The finished park covers 8.5 acres under a translucent roof and packs in 15 water slides and 15 attractions, including a ProSlide Tornado (Shrek’s Sinkhole Slammer) and one of the world’s largest indoor wave pools. Because everything is enclosed and heated, the 142-footers run year-round — a January ride down Thrillagascar feels exactly like a July one.
How They Stack Up
Being indoors makes the height all the more remarkable: most slides this tall stand on open-air towers. Globally, Thrillagascar and Jungle Jammer sit just outside the top tier of the tallest water slides in the world — Qatar’s 250-foot Meryal Waterpark towers lead that list — but nothing else enclosed under a roof comes close, and no drop-capsule slide anywhere is taller.
FAQ
How tall are Thrillagascar and Jungle Jammer?
Both slides drop from 142 feet (43.3 m), launching riders through trap-door capsules from the same platform inside DreamWorks Water Park at American Dream in New Jersey.
Are they the tallest indoor water slides in the world?
They are the tallest drop-capsule water slides in the world, indoor or outdoor — and since virtually every taller slide on Earth stands outdoors, they are widely regarded as the tallest indoor water slides ever built.
When did DreamWorks Water Park open?
October 1, 2020, inside the American Dream complex at the Meadowlands, after multiple delays — including a planned March 2020 opening cancelled by the COVID-19 pandemic.
Photo: Martin Lewison from Forest Hills, NY, U.S.A. via Wikimedia Commons (CC BY 2.0)