Much of this episode was filmed on the lagoon set of Gilligan's Island.
In the restaurant, Artemus mentions the smell of Prussic acid. This is an old term for hydrogen cyanide, the well-known poison. This term came about because hydrogen cyanide was first isolated from a dye known as Prussian Blue.
Antoinette Bower and Robert Loggia had previously worked together on Loggia's show "T. H. E. Cat"
The lagoon alligator scene looks like the set from Gilligan's Island. The location, company and dates would correspond for this.