Rio Tijucas is a river located in Santa Catarina, Brazil, flowing through the coastal lowlands of the state before emptying into Baía Tijucas on the Atlantic coast. The river drains a significant watershed in the region and transitions from inland freshwater environments toward estuarine and coastal zones near its mouth, creating a diverse range of habitats that support both freshwater and brackish-water fish species. This variety of environments makes the Rio Tijucas an interesting destination for anglers targeting a mix of native and introduced species across different stretches of the river.