Friend Gus Gravel invites the Flintstones and the Rubbles to his seaside hotel for an all-expense-paid vacation. But upon arriving, the four find that the hotel's planned ""activities"" seem more like work. Gus finally confesses that his entire hotel staff has just resigned on the eve of a huge convention.
Elenco: Mel Blanc , Alan Reed , Jean Vander Pyl , Bea Benaderet , John Stephenson , Daws Butler , Gerry Johnson , Don Messick , Hal Smith , Howard Morris , Doug Young , Henry Corden , Harvey Korman , Allan Melvin , Jerry Mann , Don Messick .