One way to celebrate the 100th birthday of the National Park Service is the Every Kid in a Park program.

Every Kid in a Park is a White House initiative in partnership with Federal Land Management agencies to help engage young visitors and create a new generation of park visitors, supporters, and advocates. With their own Every Kid in a Park pass each 4th grader in the country has free access to national parks and historic sites, wildlife refuges, and more until August 31, 2016. To find out more and get your 4th grader’s Every Kid in a Park pass, click here.