Dominated by the imposing but evocative silhouette of Giara Park, it peeks from between lush, rolling hills, from which visitors can enjoy a view over fascinating scenic cliffs covered with almond groves, vineyards, century-old olives and cereal fields. Sini is a small town of 500 inhabitants that lies in the portion of Marmilla belonging to the Province of Oristano, from which it is over 60 kilometres away. The place name derives from sinu, a reference to the cove where the town is located. During the Medieval period, the town was part of the Giudicato di Arborea, while during Aragonese rule it was first the property of the Baron of Tuili and then of Marquis Laconi.
The municipality of Sini includes part of Sa Jara Manna (the Giara), a basaltic plateau of volcanic origins home to wild horses unique to Sardinia. A wild and uncontaminated place that has no parallels, it is an ideal setting for hiking, biking and horseback riding. Another of Sini’s naturalistic jewels is the Park of Cracchera, embellished during less arid periods by the Su Strumpu waterfall.