Within the Guaraqueçaba Portal lie some of the best-preserved areas of Atlantic Forest in the entire Great Reserve. Jaguars roam its dense forests, along with other large mammals such as tapirs, white-lipped peccaries, and pumas. Guaraqueçaba was one of the first places reached by the Portuguese during colonization—it was here that the history of Paraná began.

Although time has passed, the town still preserves many of its original characteristics, including historic houses, a central square facing the bay, and caiçara culture, which can be experienced through traditional boats and Fandango dance gatherings. The Portal can be accessed by boat from Paranaguá or, for the more adventurous, via PR-405, an unpaved road stretching 78 km. Along the way, visitors can stop in several communities such as Tagaçaba, Pitinga, Serra Negra, Rio Verde, Batuva, Morato, among others.