Fee-Free Day: First Sunday of National Wildlife Refuge Week

In recognition of First Sunday of National Wildlife Refuge Week all national wildlife refuges and other U.S. Fish and Wildlife Service lands that normally charge an entrance fee offer free admission October 11, 2026.
(The entrance fee  waiver does not cover concessionaire or permit fees for some activities such as hunting, fishing or special tours.)
https://www.fws.gov/refuge/blackwater