Denver Public Library has teamed up with Colorado Parks and Wildlife and the Colorado Department of Education State Library to help people try out Colorado's State Parks - for free.
You can check out a free seven day pass to any of Colorado's 42 state parks. You also get a backpack filled with binoculars, a state park map and guides for identifying different plants and animals.
Each library branch has two park passes and two adventure backpacks. They can each be checked out for up to seven days.
Colorado Parks and Wildlife wants you to used the hashtag #CheckOutColorado, but throw a #BeOn9 or #HeyNext in your adventure photos while you're at it.
You can get more details on that here.