World's tallest water coaster coming to Six Flags Great America

Freeman Staff

Aug. 30, 2019

When it opens in Six Flags Great America in 2020, the Tsunami Surge
water coaster will be the tallest in the world at 86 feet.

Submitted photo

WAUKESHA — Get ready to have your nerves tested in 2020 when the world’s largest water coaster is set to open for riders at Six Flags Great America in Gurnee, Illinois.

The water coaster, the Tsunami Surge, will be more than 86 feet tall and will use waterblasting jet-propulsion technology. The new coaster will propel riders through 950 feet of slides and tunnels at a speed of 42 feet per second, according to the announcement.

In addition, for the first time at any Six Flags park, there will be AquaLucent visual effects that create bursts of colors and dreamlike patterns, intensifying the ride experience as guests race through the tubes for a sensational finale, according to the release.

“The new Tsunami Surge water coaster is in a class all by itself, defying gravity to blast riders uphill through 950 feet of exhilarating drops, twists and turns. This exciting, new addition is the perfect complement to an already incredible lineup of the biggest and most innovative attractions in the Midwest,” said said Six Flags Great America Park President Hank Salemi in a statement Tsunami Surge highlights include: 950 feet long and 8 stories high Riders go through twists and tunnels at over 28 mph Five hairpin turns Five drops Tsunami Surge will be the waterpark’s 25th attraction and is scheduled to debut during the 2020 season in the Riptide Bay area of Hurricane Harbor.

For more information on Tsunami Surge and the 2020 season at Six Flags Great America and Hurricane Harbor, visit