The big mystery on “Gilligan’s Island” was Posted on February 4, 2011 by davepoobond Leave a comment The big mystery on "Gilligan's Island" was why Ginger never had fish stains on her evening gowns. why the Professor could build a rocket and a radio transmitter out of coconuts, but couldn't find a way to get off the island. JUST WHERE WERE THE TOILETS? View Results Loading ... Share this:EmailFacebookTwitterMoreRedditTumblr Related Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed.