This ranks water slides at water parks, theme parks, resorts, and cruise ships by their published length, converted to feet and meters where only one unit was given. It excludes mountainside raft or dinghy slides built into natural terrain, which Guinness World Records tracks as a separate category from conventional park water slides, and any slide whose length could not be confirmed from an official park source, a manufacturer, or Guinness World Records this session.
The Longest at ESCAPE Penang in Malaysia leads at 1,111 meters (3,645 feet), a Guinness World Record set in September 2019. That is more than twice the length of the next entry, Mammoth at Holiday World & Splashin’ Safari in Indiana, at 1,763 feet (537 meters) — and the gap keeps widening below that, since most park water slides top out well under 1,000 feet.
The Full Ranking
Lengths come from each park’s or manufacturer’s own figures, or from Guinness World Records where a record applies; figures are shown in the unit the source published first, with a conversion in parentheses.
| # | Slide | Location | Length |
|---|---|---|---|
| 1 | The Longest | ESCAPE Penang, Malaysia | 3,645 ft (1,111 m) |
| 2 | Mammoth | Holiday World & Splashin’ Safari, Santa Claus, Indiana, USA | 1,763 ft (537 m) |
| 3 | Wildebeest | Holiday World & Splashin’ Safari, Santa Claus, Indiana, USA | 1,710 ft (521 m) |
| 4 | Shockwave | Aquaventure World, Atlantis The Palm, Dubai, UAE | 1,473 ft (449 m) |
| 5 | Jungle Waterslide | Buena Vista Del Rincón, Guanacaste, Costa Rica | 1,378 ft (420 m) |
| 6 | Magic Eye | Therme Erding, Erding, Germany | 1,181 ft (360 m) |
| 7 | MASSIV Monster Blaster | Galveston Island Water Park, Galveston, Texas, USA | 926 ft (282 m) |
| 8 | ZOOMbabwe | Holiday World & Splashin’ Safari, Santa Claus, Indiana, USA | 887 ft (270 m) |
| 9 | Aquazoid Amped | Water Country USA, Williamsburg, Virginia, USA | 864 ft (263 m) |
| 10 | Constrictor | Waterbom Bali, Kuta, Bali, Indonesia | 820 ft (250 m) |
| 11 | The Blaster | Royal Caribbean’s Navigator of the Seas (cruise ship) | 800+ ft (244+ m) |
| 12 | AquaDuck | Disney Dream / Disney Fantasy (cruise ships) | 765 ft (233 m) |
| 13 | Space Twister | Sonnentherme Lutzmannsburg, Austria | 663 ft (202 m) |
Why The Longest Leads by a Wide Margin
The Longest opened at ESCAPE Penang’s Waterplay section on September 26, 2019, after Guinness World Records measured it at 1,111 meters on September 6 that year. Riders share a double inner tube, enter via a cable car to the top of the hillside, and spend roughly four to four and a half minutes winding through about 20 turns and five loops under rainforest canopy before reaching the bottom — closer to a slow descent than a thrill ride. It was built by the Chinese manufacturer Daxin Water Park Equipment for ESCAPE’s parent, Sim Leisure Group.
The next-longest park attraction, Mammoth at Holiday World, is a different kind of ride entirely: a water coaster that uses ProSlide’s HydroMagnetic propulsion to push four- to six-person rafts uphill as well as down, over three acres and 70 feet of height change. At 1,763 feet it is longer than any other water coaster in operation, but it is still well under half the length of ESCAPE Penang’s gravity-fed tube slide.
How ‘Longest’ Is Measured, and Where It Gets Disputed
Guinness World Records does not keep one single ‘longest water slide’ title — it splits the record by slide type: longest inner-tube/mat slide (The Longest, at 1,111 m), longest mountain/hillside water slide, longest body slide, longest plastic slip-and-slide, and so on. Travel articles that say a different attraction is ‘the longest’ are often citing a different one of these categories, not a higher figure for the same type of ride.
The clearest example is the Jinyun Puhuayuan Alpine Slide on Puhuasi Mountain in Lishui, Zhejiang, China, which Guinness certified in 2019 as the longest mountain/hillside water slide at 2,723.08 meters (8,934 feet) — longer than ESCAPE Penang’s figure. It is left off this ranking because it is a dinghy ride built directly into a natural mountainside as a standalone tourist attraction, closer to an alpine toboggan run than a water-park slide, and record-keepers themselves track it as a separate genre. Some travel sites also cite an even longer glass-bottomed slide on Guangwu Mountain in Sichuan, China, at roughly 14,000 feet, but the Guinness World Records pages that reportedly document it returned ‘not found’ during this check, so that figure is not independently confirmed here and isn’t included.
There’s a second split worth knowing about: water coasters (Mammoth, Wildebeest, Shockwave, MASSIV Monster Blaster, The Blaster, AquaDuck) use water jets or magnetic propulsion to push rafts uphill between drops, while the rest of this list are gravity-only tube, mat, or body slides. Both count as ‘water slides’ in everyday use, but they’re engineered very differently. Shockwave at Aquaventure World in Dubai, for instance, is marketed as the ‘longest family rafting water coaster in the world’ — a narrower claim than an outright ‘longest water slide’ title, since it competes only against other jet-propelled raft coasters, not gravity tube slides like The Longest.
Notable Entries and What It Means for Planning a Visit
Two entries here aren’t at a park at all — The Blaster and AquaDuck are built onto cruise ships (Royal Caribbean’s Navigator of the Seas, and Disney’s Dream and Fantasy), so the slide travels with the itinerary rather than being tied to one destination. Magic Eye at Therme Erding is fully enclosed and indoors, which matters in a climate where outdoor water parks close for winter. Shockwave at Aquaventure World in Dubai opened March 1, 2021 as part of the park’s Trident Tower expansion and seats up to six riders facing each other in a single raft, blasting through tunnels for just over a minute. The Costa Rica entry, Jungle Waterslide at Buena Vista Del Rincón, is a body slide rather than a tube ride — you sit directly on the slide surface with only an inner tube around your upper body, which rides noticeably differently than the tube and raft slides that make up most of this list.
Length doesn’t track with intensity. Several well-known ‘extreme’ slides, such as Kilimanjaro in Brazil and Insano in Fortaleza, are ranked by drop height and speed rather than overall length and don’t appear here for that reason — they’re short, steep, and fast rather than long.
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The Longest Water Slides in the World FAQs
What is the longest water slide in the world?
The Longest at ESCAPE Penang in Malaysia, at 1,111 meters (3,645 feet), holds the Guinness World Record for longest inner-tube water slide. A mountainside raft slide in China is longer by Guinness’s separate ‘mountain/hillside’ category, but it’s a different type of ride built into natural terrain rather than a park attraction.
What is the longest water slide in the United States?
Mammoth at Holiday World & Splashin’ Safari in Santa Claus, Indiana, at 1,763 feet (537 meters), is the longest water coaster currently operating in the US. It’s a raft ride with uphill propulsion rather than a gravity-only tube slide.
Why do different sources disagree about which water slide is longest?
Guinness World Records keeps separate titles for different slide types — inner-tube slides, mountain/hillside slides, body slides, and others — so articles citing different ‘longest’ record holders are often comparing different categories rather than disagreeing on the same measurement.
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Photo: Koala:Bear / CC BY-SA 2.0, via Wikimedia Commons.