Songhellir is a famous cave, known for its echoes. The name means the cave of songs.
On the walls of the cave, a lot of people have written their names, some of them very well known persons in Iceland. Among them are Eggert Olafsson and Bjarni Palsson who were by the end of 18th century travelling around their own country - quite an enterprise at the time - fighting against superstition and for Enlightenment. You may also find there runes and signs of sorcery. Do not forget your flashlight !
It is also said that the voices of the imps sound in the cave.
The cache gives you a viewpoint on the differents caves and also a view on Stapafell, 526 meters high.
Be careful when accessing the cache. Green moss sometimes hides holes.