Fishing in Guaricana National Park

Guaricana National Park sits in the Serra do Mar mountains of Paraná, where the coastal range rises sharply from near sea level to above 1,600 metres before dropping toward Guaratuba Bay.

The terrain is steep and deeply cut, and nearly all of it drains into the littoral basin — primarily the Cubatão and Cubatãozinho river systems.

Rainfall here averages around 3,000 millimetres a year, which keeps the rivers running full and cold even through the drier months. This is Atlantic Forest country: dense, humid, and largely intact inside the park boundary.

The rivers that matter most to anglers are the ones threading those deep valleys.

The Rio Cubatãozinho is the main drainage, and smaller tributaries — the Rio São João, Rio Arraial, Rio Canavieiras, Rio Guaratuba, Rio da Igreja, Rio Brejamirim, Rio Rasgado, and Ribeirão Grande — feed into the broader watershed across the park's roughly 49,300 hectares.

These are mountain streams: fast, rocky, and clear when conditions are right, running through forest that has seen little pressure compared to the surrounding lowlands. Access into the park is shaped by the terrain.

The municipalities of Guaratuba, Morretes, and São José dos Pinhais border the park, with BR-277 to the north and BR-376 to the west serving as the main approach corridors.

Getting to the interior rivers means working through steep, forested country — this is not a park where you pull off the highway and walk to the water.

Guaricana is administered by the Chico Mendes Institute for Biodiversity Conservation (ICMBio), which manages it as a full-protection unit.

Anyone planning to fish here should contact ICMBio directly for current access rules, permitted areas, and any fishing authorizations required — regulations in Brazilian national parks of this category can be more restrictive than standard state licensing alone, and the rules are worth confirming before you go.

The rivers here are not famous water. They are remote, physically demanding to reach, and the park is young — created in 2014. That combination means the fish have had time and space that most accessible water in Paraná has not.