Main attractions include landscapes such as the Ramble and Lake, Hallett Nature Sanctuary, the Jacqueline Kennedy Onassis Reservoir, and Sheep Meadow; amusement attractions such as Wollman Rink, Central Park Carousel, and the Central Park Zoo; formal spaces such as the Central Park Mall and Bethesda Terrace; and the Delacorte Theater. The biologically diverse ecosystem has several hundred species of flora and fauna. Recreational activities include carriage-horse and bicycle tours, bicycling, sports facilities, and concerts and events such as Shakespeare in the Park.