Areas designated as greenway lands may be used for woodland, meadow, wetland, wildlife habitat, game preserve or similar conservation-oriented areas; public or private park or recreation areas which are designed to accommodate active or passive uses such as physical, leisure, sporting or relaxation activities, including but not limited to trails and community gardens; and parking areas and any other uses or structures that would facilitate the enjoyment and appreciation of said greenway lands as approved by the Board of Supervisors.