When did the original Universal Studios Florida open ?
Some of the changes , which resulted in a re-design of the ride , included the replacement of two major ride scenes ; the first being where " Jaws " bit onto the tour boat and turned it by 180 - degrees ( which was replaced with a Gas dock explosion scene ) ; and the second being the finale , which was originally loosely based on the first " Jaws " where the skipper shot a grenade into the shark 's mouth causing it to explode underwater ( which was replaced by a finale loosely based on the ending for " Jaws 2 " where the shark was electrocuted after biting onto an underwater cable attached to a high - voltage barge ) .