Lake House (Case del Lago) is in the heart of the park's oldest (eastern) section, on the western shore of Lake Chapultepec (Lago de Chapultepec). This elegant-looking building was built in the early 20th century as a summer home for Mexican president Porfirio Díaz. Today it functions as a cultural center, offering numerous workshops and classes open to the public. A short distance west of the lake is the park's Botanical Garden (Jardín Botánico), featuring plants from the world's different climatic zones.
Man-made Lake Chapultepec has cement banks and greenish-hued water that is not particularly clean. It's a very popular spot for families, especially on Sundays; go during the week for a more relaxed stroll past gardens and along walkways lined with souvenir stands and food vendors. Rowboat and paddleboat rentals are available.