From April 21 through April 29, US national parks are waiving entry fees. That's right: every single national park will be free. So, whether you're dreaming of heading to Maui's Haleakala or the Big Island's Hawaii Volcanoes, you won't pay a cent. (Of course, some parks are free year-round, like the Big Island's Puuhonua o Honaunau, but that's a story for another day.)
Visit this National Park Week site to find out about special events happening at parks across the country. April 28 is National Junior Ranger Day, too. (Kids can earn their badges at almost any national park year-round, or even online at home).
And since the national parks are letting you in for free, why not give back by helping them out with a volunteer project? Even if you missed the public programs on Earth Day (April 21), you can still find an opportunity to help out near you, wherever you live, just by searching the volunteer database.
What's your all-time favorite national park for hiking, anywhere in the USA? Tell us where we should travel next by leaving a comment below!