Tidal Wave (Six Flags St. Louis)

The Tidal Wave was a boat-based shoot-the-chutes water ride located in the Illinois section of Six Flags St. Louis in Eureka, Missouri. It opened on May 10, 1991.
The ride used 20-person boats and had a 50-foot waterfall that ended in a basin with 300,000 gallons of water, creating a wall of water 20 feet high and 80 feet wide.
Tidal Wave was demolished in December 2019 after being closed for the entire 2019 season. The ride last operated in 2018.