Fee areas of the National Park System comprise a minority of the areas of the United States National Park System administered by the National Park Service. A majority of sites are fee-free areas. The list below includes all areas that charge an entrance or standard amenity fee; generally not included are sites that only charge expanded amenity fees such as those for camping, boat launching, and parking. Sites where nearly all visitors purchase these additional amenities, such as areas with caves that require fee-based guided tours for cave access, are also generally not included. Many areas listed have parts where fees do not apply. Each year, there are a handful of free entrance days when entrance fees are waived at these areas.