I heard about this the other day. If you are 62 or older you can get a LIFETIME National Parks pass for 10 bucks. You can pick them up in either Shirley or Oyster Bay (TR house). On August 28 the govt is going to mess with them. It is going up to 80 bucks. Here is the info and the places to get them or online (20 bucks for online).
https://www.nps.gov/...ass-changes.htm