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Water parks across Illinois will reopen, as Raging Rivers in Grafton, Ill. and Raging...

The Grafton waterpark is working on a monstrous new attraction for the upcoming 2022 season.

Raging Rivers sets May 29 season opening FacebookTwitterEmail 1of3 Raging Rivers Waterpark employee Olivia Yoswig, of Jerseyville waits for young people at the bottom of a water slide last July. The popular waterpark in Grafton opens Saturday, May 29, for the season.File photosShow MoreShow Less 2of3 Raging Rivers Water Park will host a traveling sea lions show in June. The show is operated by Squalus Inc., an organization that provides homes for beached sea lions unable to return to the wild.F...

Sea lion show planned at Raging Rivers Ron DeBrock, ronald.debrock@thetelegraph.com FacebookTwitterEmail GRAFTON — Sea lions are heading to Jersey County this summer. Officials at Raging Rivers Water Park in Grafton on Thursday announced a new Sea Lion Splash Show will be offered at the park June 19-27. The traveling sea lion show, promoted as the only one of its kind in the U.S., showcases one-of-a-kind displays, singing, dancing and acrobatics. The show is operated by Squalus, Inc., an org...