Although it is not currently in any of the Sesame Street episodes, you can watch videos of Elmo and Murray visiting some United States National Parks. The purpose is to get children and their parents interested in exploring the parks in person.
Several of these videos of Elmo and Murray are available online at the National Park Service and National Park Foundation website.
Along with the videos ,there are several different printables for you and your child. There is also an educator guide that teachers and parents can use to help children.
There are many National parks throughout the country and hopefully each family gets to visit at least one.