Postponed in 2020, Six Flags Great America, Gurnee, Illinois, will introduce an innovative, record-breaking new water coaster at the park’s Hurricane Harbor in 2021. Called Tsunami Surge, it will be the tallest water coaster in the world towering over 86 feet high, using water-blasting jet-propulsion technology for fast uphill speeds and adrenaline-pumping drops. From WhiteWater West, the new coaster will propel riders through 950 feet (290 m) of slides and tunnels at a speed of 42 feet per second (13 m/s). In addition, and for the first time at any Six Flags park, Tsunami Surge will feature new, AquaLucent visual effects that create bursts of colors and patterns, intensifying the ride experience as guests race through the tubes.