Elmer Fudd expects to find "west and wewaxation" during his visit to Jellostone National Park, but he sets up camp in Bugs' backyard, and the rabbit (and a neighboring bear) definitely don't have leisure in mind.
The sign greeting campers says, "Welcome to Jellostone National Park: A Restful Retreat." Elmer Fudd finds this to be a dirty lie when Bugs Bunny torments him for the fun of it. Bugs will trick Elmer into thinking day is night, mid-air is safe ground, and his rabbity self is a grizzly bear before Elmer commits an act he'll immediately regret.