On the eastern slopes of the Aburrá Valley, Parque Arví is an ecological nature reserve and archeological site. It forms part of the network of pre-Hispanic trails of Parque Ecológico Piedras Blancas, which can be reached from the park in an hour on foot. Other attractions include canopy ziplines and a butterfly enclosure, and you can easily spend the day exploring this welcome bit of wilderness. The park is connected to downtown Medellín via the Cable Arví Metrocable from the Metro Santo Domingo interchange; the 15-minute ride up glides over the mountain ridge and into the park, affording spectacular views of the city.