The Flintstones S01 E24 The Long, Long Weekend

"Yabba Dabba Doo!"

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.