This is the third and last of the Merrie Melodies cartoons based on the songs of Gold Diggers of 1933 included in that movie's DVD. The first part has a policeman and a maid trying to woo each other on a park bench. Things seem to go well until an animal accidentally pinches the maid's behind. So she moves to someone with a car. After that part is over, we then segue to a swimming sequence. The seems really show in how there was only so much time one could use the title song for the first part before the animators knew they had to fill up the short's standard 6-minute running time. So no, Pettin' in the Park is no great shakes but interesting enough if you like looking at these early talkie cartoons.
