Across from the Universidad de Antioquia is the city's Jardín Botánico. Opened in 1978, the garden has 600 species of trees and plants, a lake, herbarium, auditorium and the Orquideorama where an orchid display is held in March and April. Just across the street is the sleek, all-concrete Parque de los Deseos, a favorite hangout of the area's college students.