What is the park called that sits on the grounds of former hospital known as "The Psych Center"?
Caleb Smith State Park Preserve:  Prior to its current name, the park was called Nissequogue River State Park, a name now used for park lands on the former Kings Park Psychiatric Center grounds. Kings Park Psychiatric Center: The Kings Park Psychiatric Center, known by Kings Park locals as "The Psych Center", is a former state-run psychiatric hospital located in Kings Park, New York.
Nissequogue River State Park