The four entrance fee-free days for 2018 will be:
“National parks connect all of us with our country’s amazing nature, culture and history,” said National Park Service Deputy Director Michael T. Reynolds. “The days that we designate as fee-free for national parks mark opportunities for the public to participate in service projects, enjoy ranger-led programs, or just spend time with family and friends exploring these diverse and special places. We hope that these fee-free days offer visitors an extra incentive to enjoy their national parks in 2018.”
Normally, 118 of the 417 national parks charge an entrance fee. The other 299 national parks do not have entrance fees. The entrance fee waiver for the fee-free days does not cover amenity or user fees for activities such as camping, boat launches, transportation, or special tours.