The Planning Board shall establish appropriate buffers between any component of the recreational business use and adjoining properties given the proposed type of recreational business, the use of adjoining parcels, and the natural topography and vegetative cover. In determining the appropriate buffer, the Planning Board should consider the New York State Department of Environmental Conservation Program Policy, "Assessing and Mitigating Visual Impacts," dated July 31, 2000, or as updated. However, open space buffers of at least 100 feet from the property line of any existing residential uses and/or Town of Dover, Dutchess County, state or federally designated trails shall be provided. Such buffers may be wooded or open and may contain trails, cart paths, and emergency access ways, but may not contain any buildings or other structures.