The Underground is now. The swimming pool remains. Daniel and the Dixieland Diggers (1983-1999). Animatronic music show in the center of Main Street, replaced by the Carousel. Family Fun Zone (1992-1994) Contestants were selected from the audience to participate in stunts and games like Beat The Clock. The Underground is now in this space. High Diving Act, (1980-1982, 1986-1987, 1990-1991) Located where The Underground is now. The swimming pool remains. Palace Theater shows (1974-1996), live shows were formerly held in the Palace Theater. Royal Hanneford Circus (1997–2016) replaced by the Adventureland Circus, the Circus tent was originally located behind the Outlaw. In 2008 construction of the water park caused the circus to be relocated just behind the Saw Mill Splash with a new access walkway between that ride and exit of the Outlaw. Incidents Several incidents have occurred at Adventureland, two of which resulted in deaths. Dragon On June 8, 1991, four riders were injured on Dragon when its lift chain broke. All four were treated for minor injuries at a nearby hospital, and the ride was repaired and returned to operation. Tornado On July 28, 2006, an 11-year-old girl sustained head trauma after being struck by a piece of wood left behind by maintenance staff on Tornado. The injured girl was transported to a local hospital where she underwent surgery for a severe blood clot and swelling. Raging River On June 7, 2016, a 68-year-old employee attendant on the platform of the Raging River ride fell onto the conveyor belt system that moves rafts back up to the boarding station. According to a witness account, the employee lost his balance as the operator set the rafts in motion. He suffered a fractured skull resulting in a severe brain injury and died three days later at a nearby hospital. Iowa's Occupational Safety and Health Administration conducted an investigation that found no evidence the park willfully violated safety protocols, and that the ride was operating as designed. The park was fined a maximum $4,500 for the accident, and OSHA recommended installing additional controls to prevent the movement of the ride until all ride operators were in a safe location. On July 3, 2021, a raft on Raging River carrying six passengers overturned, sending four guests to a local hospital with severe injuries. One of the passengers, an 11-year-old boy, later died. The ride was inspected the day before the incident and