Lincoln Park is Chicago's largest and most visited park and the third most visited city park in the U.S., with over 20 million visitors annually. Established in 1984, the Lincoln Park Conservancy works to enhance the park through volunteer power, fundraising, and park improvements. Through its master agreement with the Chicago Park District, the Conservancy manages treasured Park sites including the Alfred Caldwell Lily Pool, Abraham Lincoln Monument and Gardens, Lincoln Park Conservatory, and North Pond Nature Sanctuary, in addition to general stewardship activities across Lincoln Park's 1,200 acres. Conservancy volunteers give thousands of hours of service every year, engaging with park visitors and maintaining this portion of Lincoln Park.