The Aran Islands are located off the Galway coast between Galway Bay and the Atlantic Ocean. The Aran Islands include three islands of which Inis Mor is the largest. The other two are Inis Meain and Inis Oirr. The Aran Islands landscape is made up of limestone rock in the form of cliffs, bolders and stone walls. Dun Aengus is a stone fort in the formation of a semi circle on the edge of a cliff overlooking the Atlantic is one of the best examples of its kind in the world. The Island pubs offer a variety of traditional entertainment with the best in Ceili dancing and sean nos singing which is solo singing unaccompanied by music. The Aran Jumper or Sweater was a very popular and essential piece of clothing which was mainly worn by the Islands fishermen. These jumpers were knitted by the wives of the fishermen with untreated wools that retained their oils which made the jumper resistant to water and allowed the fishermen wear them in all types of weather. There is a ferry to and from the Islands several times daily.