The Flintstones Season 1 Episode 24 - The Long, Long Weekend Episode Title:The Long, Long Weekend.Episode Description:Fred's old friend Gus Gravel (voiced by Willard Waterman) invites the Flintstones and Rubbles to his seaside hotel for an all-expense-paid vacation. However upon arriving, the foursome finds that the hotel's planned "activities" seem more like work, because the entire hotel staff has quit their jobs just prior to the foursome's arrival. Gus finally confesses the truth to his four new guests, adding further bad news in that a huge convention is about to arrive, and he needs the Flintstones and Rubbles to stay and work as hotel staff.