ProSlide debuted three types of water slides in 1987, Twisters, Kidz, and Plummets, which are all types of body flumes. The first Twisters opened at Mont Saint-Sauveur in Quebec and Adventure World Theme Park (now known as Six Flags America) in Largo, Maryland, United States; both parks opened 4 Twisters that year. Plummets consist of a vertical drop only, followed by a long, flat segment to help riders decelerate. The first Plummets opened at Aquapar Magog in Quebec and Six Flags America, respectively. ProSlide also debuted their children's water slides (ProSlide Kidz) in 1987, which are miniature versions of Twisters designed for young children. Initially, they were installed more frequently than the full-size Twisters.