National Parks Dropping Fees on Three Summer Weekends

All across the country this summer, national parks are dropping entrance fees on three weekends: June 20-21, July 18-19 and August 15-16. Though most National Park Service-managed lands in the Get Out! coverage region do not charge entrance fees, some parks - such as Mammoth Cave - are offering some tours and services for free. For more info, see nps.gov.