Paddling in Parque Nacional da Serra do Itajaí

The rivers inside Parque Nacional da Serra do Itajaí are born here. The park sits entirely within the Vale do Itajaí in Santa Catarina, covering 57,374 hectares of Atlantic Forest across nine municipalities — Blumenau, Indaial, Apiúna, and six others.

The terrain is steep and forested, and virtually everywhere you walk inside the park, you cross a stream or hear one. Most of those streams run over rock, which is reflected in local place names and in the character of the water itself.

The Ribeirão Agrião is among the named waters inside the park.

Like most of the watercourses here, it originates within the protected area and runs clear over stone — the kind of water that draws local families for swimming and that rewards anyone willing to read the gradient carefully.

The Cachoeira do Zinco, Cachoeira do Encano, and Cachoeira do Ribeirão Liso are significant features, which tells you something about the energy these rivers carry before they flatten out downstream.

The broader watershed feeds the Rio Itajaí-Açu, which gathers volume well outside the park boundary.

Paddling events on the Itajaí-Açu, including organized canoeing gatherings, happen downstream of the park — the river there has the size and flow that organized paddling requires. Inside the park, the picture is different.

This is a strict protection unit (IUCN Category II), administered by ICMBio, and that classification shapes what is and isn't permitted on the water.

The park has been formally closed to general visitation for much of its existence, though local use of the rivers has continued.

Before any paddling trip inside the boundary, contact ICMBio or the local partner organizations — IPAN in the Blumenau sector and ASSEPAVI in the Guabiruba sector — to understand current access conditions and any permits required.

The rivers here are headwaters. Treat them accordingly.