The beach is part of a complex fluvial-coastal ecosystem influenced by the Rio Posada, which creates unique brackish water environments.
The dunes at Su Tiriarzu are part of a dune restoration project designed to prevent erosion and protect local flora.
The beach has frequently received the '5 Vele' award from Legambiente and the Italian Touring Club for its environmental quality and water cleanliness.
The nearby Rio Posada estuary is a critical stopover point for pink flamingos and other migratory bird species.
The sand grain size at Su Tiriarzu is notably finer than many other beaches in the immediate Nuoro province.
Spiaggia di Posada, locally known as Su Tiriarzu, is a highly-rated, expansive sandy beach located on the northeastern coast of Sardinia. The coastline is defined by fine white sand and shallow, turquoise waters, making it particularly suitable for families. It is backed by a large system of protected sand dunes that separate the beach from the mouth of the Posada River and surrounding marshlands. The area is part of the Rio Posada protected nature reserve, preserving a rare ecosystem of wetlands that attract migratory birds. The beach is characterized by its wide, open shoreline that rarely feels overcrowded even during peak summer months. Visitors can access the beach via paths that wind through the protected dune vegetation. The proximity to the historic village of Posada, perched on a limestone hill, provides a distinctive backdrop to the coastal landscape.
From the wooden walkways looking back toward the Castello della Fava on the distant hilltop.
Bring a sturdy pair of sandals for the elevated wooden walkways that protect the sand dunes.
Water shoes are helpful, though the seabed is primarily soft sand.
Plan to visit the medieval village of Posada on the hill once you finish your beach time to see the Castello della Fava.
Do not attempt to park in unauthorized grass areas near the dunes, as this is strictly prohibited to preserve the ecosystem.
The beach is most accessible and patrolled from late spring to early autumn; services such as kiosks typically close outside of the summer season.
Avoid walking on or climbing the dunes outside of marked wooden paths to protect the fragile vegetation.
