Stapafell, (526 m) an elongated tuff mountain with much scree, extending south from the lower slopes of the Snæ­fells­jökull gla­cier. On top is a rock, Fellskross, sup­posed­ly the dwel­ling of the “hidden people” or elves. To the north of Stapa­fell is the Sönghellir (“Singing cave”), known for its echoes. Many names are carved in the rock, including those of Eggert Ólafsson and Bjarni Pálsson who travel­led the country in the 18th century.