Sardinia has few major rivers , the largest being the Tirso , long , which flows into the Sea of Sardinia , the Coghinas ( 115 km ) and the Flumendosa ( 127 km ) .
Sardinia has few major rivers , the largest being the Tirso , 151 km long , which flows into the western Mediterranean Sea , the Coghinas ( 115 km ) and the Flumendosa ( 127 km ) .