National Park Week runs from April 15 to 23 and to celebrate, the National Park Service is giving you the chance to venture into the nation's parks on the weekends free of charge.

On April 15 and 16 and again on April 22 and 23 you can visit any national park in the country free of charge.

Colorado is home to four national parks, each offering a wide range of natural beauty. So get outside and explore!