The Secret of Gilligan's Island

The Secret Of Gilligan's Island is the 93rd episode of Gilligan's Island and the 25th episode of the Third Season. It aired on March 13, 1967.

Synopsis
The Castaways find a stone tablet -can they use it to get off the island?

Credits
Main Cast
 * Bob Denver as Gilligan
 * Alan Hale Jr. as The Skipper
 * Jim Backus as Mr. Howell
 * Natalie Schafer as Mrs. Howell
 * Tina Louise as Ginger
 * Dawn Wells as Mary Ann
 * Russell Johnson as The Professor

Guest Cast
 * None

Trivia

 * Syndicated versions of the episode omit the tag scene with Gilligan showing off his own hieroglyph.
 * The footage of the allosaurus comes from the 1960 movie, "Dinosaurus."
 * The cave the hieroglyphs come from looks like the same cave as the native relics in Voodoo Something to Me.

Quotes

 * Gilligan - Chief Howell say we stay here for 100 years or until we die... which ever come first.