Ölfus () is a municipality located in Iceland. The major town is called Þorlákshöfn. The bottled water brand Icelandic Glacial is manufactured in this area, at the Ölfus spring. Geography In Ölfus several lava tubes can be visited. Raufarhólshellir is one of the longest lava tubes in Iceland with a length of 1360 metres and a height of up to 10 metres. One of the most famous caves is Búri (cave). Another local cave is Arnarker with a length of 516 metres. Leitarhraun is a lava field which is about 5000 years old in the northwest of the municipality. Lake Hlíðarvatn covering an area of 3,3 km2 is a lake with a depth of up to 5 metres which is known for its birdlife. In Reykjadalur valley several hot wells and springs are visited for bathing. Árnarhellir is a stalactite cave near Þorlákshöfn. Earthquakes caused some damage in Ölfus in 1706 and 1896. Culture and sights One of the most famous buildings in Ölfus is Strandarkirkja, a wooden church built in 1888 and renovated in 1968 and 1996 which has been mentioned in many old documents and stories. Its retable was painted in 1865 by Sigurður Guðmundsson (1833–1874), the Icelandic painter, and the pulpit as well as the altar date from 1888. Selvogsviti is a lighthouse at Selvogur Bay measuring 20 metres in height which was built in 1991. Close to the bay Fornigarður can be seen, an old wall measuring seven kilometres in length which in 1275 was mentioned in a document for the first time. Sometimes it is called Langigarður or Strandargarður as well. Originally its height amounted to 1.66 metres and its broadth to 0.96 centimetres, but due to erosion the wall has become lower and thinner. Under its basis ash was found from a volcanic eruption of Hekla which took place in 1104. This could mean that the wall was built after 1104. Hjallakirkja is a Protestant church in the community of Hjalli which was built in 1928. It houses various pieces of art, e.g. a pulpit dating from 1797 erbaut and a retable representing the resurrection of Christ. Legend has it that the church was founded immediately after the introduction of Christianity in 1000, and according to Flóamanna saga the church was built by a settler called Skaftur Þóroddsson. Kotstrandarkirkja is a comparatively large wooden church dating from 1909 with a well-kept garden in the