The City Charter created the Department of Parks and Recreation in 1884. Seattle Parks and Recreation (SPR) works with all residents to be good stewards of the environment and to provide safe, welcoming opportunities to play, learn, contemplate, and build community. Parks manages a 6,400-acre park system of over 485 parks and extensive natural areas. Parks provides athletic fields, tennis courts, play areas, specialty gardens, and more than 25 miles of boulevards and 120 miles of trails. The system comprises about 12% of the city's land area. Parks also manages many facilities, including 27 community centers, eight indoor swimming pools, two outdoor (summer) swimming pools, three environmental education centers, two small craft centers, four golf courses, an outdoor stadium, and much more.