Local travel agencies offer a variety of day tours, including catamaran trips on the Rio São Francisco to the green waters of the canyon of Xingó, or to the Foz do São Francisco, where the river meets the sea. A tour is also a pretty good way to check out difficult-to-reach Mangue Seco, on the border with Bahia. Bird enthusiasts will enjoy a visit to the Parque dos Falcões, a reserve located 45km from Aracaju. Most tours are R$75–130 per person and you will be pooled with other people who purchased from different companies. Nozes Tur is a solid bet if you are looking for a place to book.