Built in 1986 atop the old entrance to the Canadian Pacific Railway freight tunnel that runs under downtown (now the SkyTrain tunnel). The park was jointly funded by the City of Vancouver, TransLink, and the CPR.
Barry confronts the individual who saved him from the shark-man and finds out he is Harrison Wells in episode 2x04 "The Fury of Firestorm".
Jesse runs with Wally to a park downtown where she kisses him in episode 3x04 "The New Rogues". Julian meets up with Caitlin at the park and they decide to go out for dinner in episode 3x13 "Attack on Gorilla City".