Waiting for Watubi

Gilligan, the Skipper, and the Professor were digging a hole when the Skipper discovers a idol: Cona the god of evil. Believing he's now cursed, the Skipper, along with Gilligan, bury the idol unaware that the Howells are watching and later hid it in their hut. Skipper discovers it and tells Gilligan to bury it again, but he loses the statue in the jungle. The rest of the castaways try to cheer the Skipper up with a party and it works until Mary Ann and Ginger accidentally give the Skipper Cona as a gift. Gilligan dresses up as Watubi, the only god that can stop Cona, to make the Skipper back to his old self. Earthquakes that appear when Gilligan says they will convinces the Skipper he's cured, until he hits his head on a tree for the 2nd time in the episode.

Trivia

 * This was the first of many episodes directed by Jack Arnold