Film1972Highbridge Park & Coogan's Bluff
The Hot Rock
Robert Redford, George Segal and Zero Mostel meet at the base of the High Bridge Water Tower in this heist comedy.
Highbridge Park, entering at W 175th St and Amsterdam Ave · High Bridge Water Tower

NYC in Film identifies the park scene: the thieves enter Highbridge Park at W 175th St and Amsterdam Ave, cross a field toward the water tower, and meet Abe Greenberg at the base of the tower, overlooking the Harlem River. The same scene is recalled in a comment on the Washington Heights NYC site.