Opened in 1979, Guayaquil's botanical gardens are home to over 325 species of native and imported tropical flora. Well-tended paths wind through sections of ornamental plants, orchids, and bromeliads, as well as medicinal plants and herbs, fruit and lumber trees, and various crops. The orchid collection is particularly beautiful. This is a great place for urban bird-watching, with over 70 avian species on record, as well as over 60 species of butterflies. The gardens are north of the city center, out along the main Avenida Francisco de Orellana. A taxi here should cost around $6 (£4).