Tsunami Surge
A 26-metre water coaster near Chicago that was the tallest in the world when it opened in 2021.Tsunami Surge is a WhiteWater Master Blaster: 86 ft (26 m) tall, 950 ft long, 28 mph, opened 29 May 2021. It was the world's tallest water coaster until Surreal (Brazil) opened in 2025.
↕26 mtall
↔290 mlong
⚡45 km/htop speed
📅2021opened
📍🇺🇸Gurnee, Illinois, United States
🚦Operatingstatus
🏆Records & awards
- Tallest water coaster 2021-2025
📏How tall is 26 m?
🧵How long is 290 m?
🏊
5.8 swimming poolsOlympic pools laid end to end (50 m each)⚽
2.8 football pitchesLong ones, 105 m each🚶
580 stepsIf you walked it instead of sliding🏎️How fast is 45 km/h?
🏃
You running · 15 km/h
🛝
This slide · 45 km/h
🚗
A car in town · 50 km/h
🔧How a water coaster (jets) works
⬇️
1. DropStart with a big downhill.💨
2. JetsWater jets fire and push you UP the hill.🎢
3. Again!Down, up, down, up, like a roller coaster.🏊
4. SplashFinish in the pool.🗺️Where is it?
Six Flags Hurricane Harbor Chicago, Gurnee, Illinois, United States. Show on the World Slide Map →
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Sources: Guinness World Records, manufacturer and park announcements, Coasterpedia, Wikipedia, Blooloop and news reports; last reviewed September 2026. Spot an error?