Beach Scene

Anyone know where the first beach scenes with Dyan Cannon's character where filmed? It looks an awful lot like Bathtub Beach(Sewall's Point) which is north of Boynton. I live in Vero Beach and used to go there all the time before all the erosion from the hurricanes.
This is a nice little film. I have loved Joseph Bologna since I was little and saw him in Rags to Riches and Blame it on Rio.