Looking for something free to do this weekend? Check out a national park.
Entrance fees will be waived at all U.S. national park sites this Saturday and Sunday, bringing a close to National Park Week.
Visitors still have to pay the usual fees at campgrounds and concession stands. In addition to free admission this weekend, many parks are offering special events throughout the week.
Many of the parks will have special activities for kids on National Junior Ranger Day on April 26.
And if you are looking to get out and explore Yellowstone on a bicycle, many roads have been cleared and are closed to vehicle traffic. You can find road conditions here.