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The Joker

(154) Roller coaster in Vallejo, California
The Joker is a steel roller coaster at Six Flags Discovery Kingdom in Vallejo, California. The ride opened on May 29, 2016, as a rebuild of former wooden roller coaster Roar, adding a new steel track on top of Roar's wooden support structure.
Address: 1001 Fairgrounds Dr, Vallejo, CA 94589
Hours: Closed ⋅ Opens 11 AM
Phone: (707) 644-4000