The Munsters take in the sights at Marineland.
| Actor | Role |
|---|---|
 Fred GwynneHerman Munster | Herman Munster |
 Yvonne De CarloLily Munster | Lily Munster |
 Al LewisGrandpa Munster | Grandpa Munster |
 Pat PriestMarilyn Munster | Marilyn Munster |
 Butch PatrickEddie Munster | Eddie Munster |
 Sid GouldTour Guide | Tour Guide |