The River Tar is a limestone river flowing through the scenic countryside of County Tipperary in Ireland, sharing characteristics with England's renowned chalk streams. Fed by a limestone base, the Tar is a fast-flowing mountain river that winds through farmland and a beautifully wooded valley before joining the River Suir. Its limestone character gives the water exceptional clarity and fertility, creating ideal conditions for wild brown trout. The river and its tributaries — the Duag and the Shanbally — together form a productive and intimate fly fishing system that draws anglers seeking a classic Irish wild trout experience.