The Isles of Rhûnaer, also known as the Nabal Mayzri to the Easterlings and Dorwinrim, were a collection of small Islands within the Rhûnaer, largest of which was known as Tol Sûlereb or Tol Buruth.Some of the larger Isles were home to indigenous Sea-Easterling fishermen, others were known to be secret hideouts of the Corsairs of Rhûn.