The Marano-Grado Lagoon includes the wetlands lying between the mouths of the Isonzo and Tagliamento rivers, an area covering over 16,000 hectares and abounding with inlets, islands, saltmarshes and channels, all together forming an extraordinary, fascinating fishing environment. Six sandbars separate the lagoon from the open sea, regulating the flow of saltwater that moves in and out during high and low tide. Water is also exchanged between the lagoon and sea thanks to nine different rivers that provide a constant supply of fresh water and whose mouths form excellent fishing grounds. The stretch of sea in front of the lagoon is also attractive for sport fishing. The numerous canals that connect to the lagoon, extensive Posidonia seagrass beds, submerged islets, and oyster beds provide many areas perfect for fishing, some of which remain unexplored.

The fishing period runs from spring to fall, depending on the seasonal weather conditions. It usually begins in mid-April and lasts until mid-October.