If you are older than 62 years of age then you can acquire something I can't.... All 417 national parks and over 2,000 recreational sites for only $10 - and that's just a one time fee - but unfortunately not for long.  By the end of 2017  that $10 seniors parks pass will be going up to $80!

That $80 will be a one time fee and the pass will last you the rest of your life but you'll want to jump on getting that pass while it is still $10! Why the increase you ask? In 2016, Congress passed the National Park Service Centennial Act which raises fees and sets up an endowment to help pay for projects and visitor services.