Highlights: South Iceland is the most popular part of the country and contains some of the most beautiful natural attractions in Iceland, among them the Golden Circle, some of Iceland's most famous active volcanoes as well as the beautiful Jokulsarlon glacier lagoon.
Geography
South Iceland is usually divided into the fertile South Icelandic lowlands between Hellisheidi and Eyjafjallajokull volcano on the one hand - and on the other hand the eastern part with the big volcanic glaciers Eyjafjallajokull and Myrdalsjokull (home of Katla) and flattened sands stretching towards the sea.
The South Icelandic lowlands
The South Icelandic Lowlands stretch nearly 100 km from Hellisheidi in the west towards Eyjafjallajokull in the east as a very flat and fertile farming land. From the shore the lowland stretches about km towards the inland. This is the best agriculture area in Iceland. The whole area is geologically very young, mainly of tuff type, formed during the Ice Age by the lava flows of the numerous volcanoes of the area. The area is indeed surrounded by volcanically active mountains on all sides. The glacier rivers of the area have helped filling the lavas with sand and clay, leaving it more and less smooth and fertile. Very strong earthquakes are found in this area as well.
The most active volcanoes of the area are Hekla and Eyjafjallajokull. No less active and not far off, but on the east side, is Katla, which we’ll adress in the eastern part-section. South of the mainland are the volcanic Westman Islands, famous for the 1973 eruption as well as the eruption in 1963, when Surtsey island was formed. Closely linked to the volcanic activity in the south is the geothermal heat found in many places, the best known being the Geysir area, which forms a part of the famed Golden Circle, which also consists of Gullfoss waterfall , Iceland's most famous waterfall as well as one of its most beautiful, located in the popular rafting river Hvita and Thingvellir National Park, comprising three of Iceland's most beloved natural attractions.
The earthquakes of the area bear witness to the fact that Iceland is still in shape. This is further evidenced by the endless number of fissures in the lavas, fractures in the mountains and certain pieces of lands sinking. The area of Thingvellir is the best known example of this, showcasing the continental drift. Thingvellir is a UNESCO World Heritage Site and the location of the old parliament, Althingi, (now situated in Reykjavik) and one of Iceland's most important sites.
Another of Iceland's most popular attractions is the beautiful Thorsmork valley, situated between Myrdalsjokull and Eyjafjallajokull.
Natural harbour-sites are hardly any on the South shore, due to sand produced by the glacier rivers. A few towns are found in the area, Selfoss being the biggest one, Hveragerdi is another, then there are Hella and Hvolsvollur, all conveniently located by the ring road. By the shore are three fishing villages; Thorlakshofn, Eyrarbakki and Stokkseyri. Thorlakshofn the only one of those that can accommodate modern ships and ferrys. The ferry to the Westman Islands sails from there. A new harbour has been built on the sandy coast opposite the Westman Islands. The whole south shoreline offers some of the most gigantic braker waves that you are likely to see.
Culturewise, in addition to Thingvellir, we reccomend the ancient bishop seat of Skalholt (weekends at Skalholt further offer rich music life). Also, Iceland's most famous saga, Njal's saga takes place in the South lowlands. We further recommend the large reconstructed turfhouse near Stong and the ancient excavated ruins.
For sports, horse riding is popular in the area as well as catching salmon or trout, hiking, and river rafting in Hvita.
The east part of South Iceland.
This is the area south and east of Myrdalsjokull. The volcanic glaciers Eyjafjallajokull (near the border of the eastern and western part) and Myrdalsjokull, dominate the view. The landscape has been shaped by volcanic eruptions and vast sands stretch to the sea. Some agriculture is found here, however, with the farms in a row alongside the mountains. A few large glacial rivers fall down in this area which also has striking waterfalls, such as Skogafoss and Seljalandsfoss.
Eyjafjallajokull is already well known for its 2010 eruption, disturbing air communication all over Europe for many days. Much more serious,however, would be an eruption from Katla, a volcano in the eastern part og Myrdalsjokull.
Katla’s last eruption was in the year 1918, when an enormous flood of water exploded from the glacier in a matter of minutes, threatening the local farmers of the area. Large amounts of ash and muddy material were brought to sea to form a new land of sand, Kotlutangi, later washed away by the sea. No people were killed in this eruption. Eruptions in Katla throughout the ages have further created the vast sand area Myrdalssandur. Sixteen eruptions have been recorded for Katla since 930 at intervals of 13-95 years and the volcano is being closely monitored, as time may draw near to its next eruption.
In the same volcanic system as Katla (geologically speaking), are the Lakagigar craters, northeast of Myrdalsjokull. Those erupted in the years 1783-84; producing the largest amount of lava known in historic times. The ashes hindered the sunlight from reaching down to the surface of Earth, resulting in cold climate over northern Europe.
In this area – what we call the eastern part of South Iceland -, there are many places worth visiting: Solheimajokull is a beautiful glacier in a walking distance (an outlet of Myrdalsjokull); Skogar has a very interesting museum of older time traditions and Skogafoss is only a few km away from there. One of Iceland’s most famous hiking routes, Fimmvorduhals, starts from Skogar. Southwest of the village Vik is one of Iceland’s most spectacular beaches, Reynisfjara. Together with the promontory Dyrholaey, which is the southernmost tip of the mainland of Iceland, it offers a breathtaking view with amazing rock formations, a black pebble beach, an abundance of birds and the powerful waves of the North Atlantic Ocean crashing on the beach.
Further east stretches the world's most vast sand plain, Skeidararsandur. North of the sand is the fascinating Skaftafell preservation area. At its east end, south of Hvannadalshnukur, Iceland's highest peak, is Ingolfshofdi cape, with its rich birdlife, old fishermen's shacks and its lighthouse. Following the shore further east is the incredibly beautiful and ice-filled Jokulsarlon glacier lagoon. Not far off is the region of Sudursveit, featuring the culture center and heritage museum Thorbergssetur, erected in the memory of Icelandic author Thorbergur Thordarson.
South Iceland, 
Skógafoss is one of the country’s biggest and most beautiful waterfalls with an astounding width of 25 meters (82 ft) and a drop of 60 meters (197 ft). Due to the amount of spray the cascade produces, a rainbow is present any time the sun emerges from behind the clouds.
Located on the Skógá river, this mighty cascade is clearly visible from Route 1 and is an excellent place to stop and stretch the legs while travelling Iceland’s South Coast. The river below Skógafoss holds a large char and salmon population and is thus a favourite spot for fishermen in the summer.
The land underneath the waterfall is very flat, allowing visitors to walk right up to the wall of water. Keep in mind, however, that this will get you drenched. Skógafoss can also be viewed from the top as a steep staircase leads to an observational platform above the cascade.
Geography
Skógafoss is located near the small village of Skógar, south of the Eyjafjallajökull glacier volcano. There you’ll find the Skógasafn folk museum, an open-air museum with both old wooden houses and turf houses, as well as a regional museum with various artefacts from this area.
A part of the Skógasafn Regional Museum is the Museum of Transportation, which showcases the history and evolution of transportation, communication and technologies in Iceland. There, you can see how this nation evolved from the age of the working horse to the digital communications of the 21st century.
The Skógasafn museum also includes a café and a museum shop, and in the village of Skógar, you will find both a hotel and a restaurant.
At the eastern side of Skógafoss, you will find one of Iceland’s most famed hiking routes; the Fimmvörðuháls pass. The 22 km (14 mi) trail takes you along Skógá river, between two glaciers, Mýrdalsjökull and Eyjafjallajökull, before ending in the beautiful Þórsmörk valley.
Folklore
A gold ring is on display at the Skógasafn museum. According to legend, the ring is from a chest that was owned by Þrasi Þórólfsson, one of the first Viking settlers in the area. Folklore states that before his death in 900 AD, Þrasi buried a chest filled with gold in a cave behind Skógafoss waterfall.
Many attempts were made to retrieve the chest after Þrasi’s death, and years later, locals managed to grasp a ring on the side of the chest. As they pulled, the ring broke off, and the treasure was lost forever. The ring was then given to the local church before it made its way to the museum.
Skógafoss, 
Seljalandsfoss is a waterfall, situated on the South Coast of Iceland, with a drop of 60 metres (200 feet).
Due to the waterfall’s close proximity to the Ring Road and impressive natural features, it is one of the most famous and visited falls in the whole country. Majestic and picturesque, the waterfall is one of the most photographed features in the whole of Iceland.
Geology and Surroundings
Seljalandsfoss waterfall, part of the river Seljalandsá, has its origins underneath the glacier volcano Eyjafjallajökull. The cascade of the falls is relatively narrow. However, it used to be wider until a flood in 1976 altered the shape of the cliffs from which the waterfall tumbles. The rainfall during the day of the flood measured 101 millimetres (4 inches), which caused a significant rise in the water levels of rivers in the area. This event caused a new crack to form in the cliffs, that subsequently redirected the width of the falls.
The cliffs themselves are the remnants of a former coastline, which now separates the lowlands from the Highlands of Iceland. The same can be said of Seljalandsfoss’s equally famous neighbour, Skógafoss waterfall.

The most distinguished feature of Seljalandsfoss is a natural pathway that stretches all the way around it. The cliffs behind the falls, therefore, form an accessible cave. Visitors can easily walk this path, although they should be prepared to get dampened due to the perpetual mist of the falls, which also tends to make the rocks of the pathway slippery. During the winter season, it is highly advised not to walk around the falls since the icing makes the walk too hazardous.
However, floodlights have been set up on both sides of the waterfall, which impressively illuminate the scene during dark winter nights. The lights were installed in 2001 due to the growing popularity of the falls as a tourist destination.
After visiting Seljalandsfoss, it is common for visitors to continue north to the waterfall Gljúfrabúi, which is found partially hidden behind a rock face. Because of Seljalandsfoss extreme popularity, Gljúfrabúi is widely considered an additional hidden gem of the scene.
Visitor Centre Controversy
In 2017, it was announced that a visitor’s centre was to be constructed near the falls. The design of the building indicates that it would be 7 metres (23 feet) high and 2,000 square metres (21,500 square feet) in size. Landowners in the area opposed to the idea, proclaiming that the centre would greatly alter the natural appearance of the waterfall’s renowned scenery.
The project has neither been fully approved nor wholly cancelled, with ideas surfacing of either significantly reducing the size of the construction, or moving the visitor centre’s location further away, for instance to the nearby farmstead Brekkuhorn.
Seljalandsfoss in Popular Culture
Along with a multitude of South Iceland’s most famous natural attractions, Seljalandsfoss can be seen in Justin Bieber’s music video for his song ‘I’ll Show You’.
The waterfall was also a featured waypoint during the first leg of the sixth season of The Amazing Race, an American reality TV series.
Seljalandsfoss,
The glacier volcano of Eyjafjallajokull (1651 m) is located at the borders of the South Icelandic highlands. It featured prominently in world news in 2010 when ash from its eruption halted air traffic in Europe.
An ice cap of about 100 km with several outlet glaciers covers the caldera of Eyjafjallajökull that stands at the height of 1651 meters. The diamaeter of its highest crater is around 3-4 km2 wide and the rim has several peaks.
Eyjafjallajokull glacier volcano lies north of Skogar, and to the west of Myrdalsjokull glacier and the massive volcano there; Katla.
Eyjafjallajokull is thought to be related geologically to Katla in Myrdalsjokull and eruptions in the former have often been followed by eruptions in the latter.
The 2010 eruptions
The end of 2010 saw some small seismic activity that gradually increased and resulted in a small eruption in March of 2010, characterized by a flow of alkani-olivine basalt lava.
This first stage lasted until April 12th and created the volcanic craters Magni and Modi at the Fimmvorduhals trail. They are so far Iceland's newest vocanic craters, and still eminate steam with lava glowing under the surface.
However it was the second phase of the eruption that started on April 14th that created the huge ash cloud that rose about 9 km into the skies.
This eruption halted air traffic in Europe for days, and its estimated that as many as 107.000 flights may have been cancelled during the week it lasted.
The ejected tephra measured around 250 million cubic meters. This ash cloud lasted for six days and some more localized disruption continued into May. The eruption was officially declared to be over in October 2010, as the snow on the glacier had ceased to melt.
Future volcanic developments?
Eyjafjallajokull erupted in years 920, 1612 and again 1821-1823.
Its latest eruptions were the two that occurred in 2010.
Future volcanic developments remain unclear. The area is still highly active and can be quite unpredictable. It continues, however, to be closely monitored by The Icelandic Meterological Office.
Eyjafjallajökull, Katla is an active volcano situated under the glacier Myrdalsjokull in South Iceland. It is one of Iceland's most well known volcanoes.
Katla's eruptions have produced many massive glacier bursts, with enormous amounts of water flowing, as the fire melts the ice. Its latest eruption was 1918. That eruption created the spit Kötlutangi, which is the mainland's southernmost tip.
Katla, 
Mýrdalsjökull is a glacier in the south of the Icelandic highlands. It is the country's fourth largest ice cap, covering nearly 600 kilometres squared, and its highest peak is almost 1500 meters tall. It is most well-known for sitting atop the notorious and explosive volcano, Katla.Mýrdalsjökull is visible from Route 1 on the South Coast, sitting to the north of the village of Vík.
Eruptions beneath Mýrdalsjökull
Since 2010, the world has known of the volcano beneath Eyjafjallajökull; few, however, are aware of the much larger volcano right beside it. Mýdalsjökull conceals Katla, one of the country’s most active volcanoes, having erupted, on average, once every fifty years since 930 AD. Because of the glacier above it, these eruptions tend to cause enormous ash clouds.
The last major eruption beneath Katla was in 1918, in which such huge lahar floods occurred that the southern coastline was extended five kilometres outwards. This area is also very susceptible to glacial floods, or jökulhlaups, during eruptions, even when the lava does not break through the surface of the ice.
Historically, the area was little settled for this reason.
Katla is connected to the same volcanic system as Eyjafallajökull and usually erupts violently a few years after. As the ex-president, Ólafur Ragnar Grímsson said in 2010:
‘The time for Katla to erupt is coming close… it is high time for European governments and airline authorities all over Europe and the world to start planning for the eventual Katla eruption’
Katla is monitored heavily, and roads around it closed when seismic activity increases. All road closures around Iceland can be found on Road and Coastal Administration's website.
Tours on Mýrdalsjökull
While there are no eruptions immediately imminent, tours continue to run on Mýrdalsjökull, allowing visitors to enjoy the glacier. It is, for example, possible to snowmobile across its surface throughout the year and take ice caving tours beneath it from October to April, with departures from both Reykjavík and Vík.
Considering the ice caves under Vatnajökull glacier are usually only accessible from November to March, this provides a wider window of opportunity for travellers to Iceland outside of the depths of winter. It should be noted that the caves in Mýrdalsjökull do not have the same blue ice, however.
Tours around Mýrdalsjökull
Mýrdalsjökull can be seen on all South Coast tours that reach Vík and beyond in clear weather. It can also be seen from above on helicopter tours that depart from Reykjavík.
The best perspectives of the glacier, however, can be found on the popular Fimmvörðuháls hiking trail, which goes between Eyjafjallajökull and Mýrdalsjökull. Part of this hike can be done in a day, or you can take the complete route from Þórsmörk to Skógar on a three-day trek.
Mýrdalsjökull, 
The South Coast of Iceland is the country's most visited sightseeing route, along with the Golden Circle.
The famed South Coast shoreline stretches from the greater Reykjavík area and is dotted with natural wonders such as cascading waterfalls, volcanoes both active and dormant, black sand beaches and glacier lagoons.
Geography, Nature & Wildlife
Iceland is divided into eight geographical regions. Out of these, the Southern Region is the largest, as it spans over 24.000 square kilometres with its administrative centre in the municipality of Selfoss.
What is known as the South Coast embodies the shoreline of this particular region. The area consists of a lowland that is mostly composed of marshlands, bays and cultivated pastures that are met by a series of black beaches where the estuaries to the east and west of the district close off the coastal body.
Underneath the soil rests a vast lava field, known as Þjórsárhraun. Its edges reach several hundred metres offshore where the ocean waves crash upon them, thereby protecting the lowland from the invasion of the sea. This results in the South Coast being unusually lacking in the deep fjords that so distinctly characterise the rest of Iceland's shore line.
The region boasts vibrant bird life during all seasons. It is not only rich with both marshland birds and seabirds but also migrating birds such as the North Atlantic puffin. Some species stay throughout the harsh Icelandic winter, including the northern diver, the loom and various species of gulls and ducks.
Highlights of the South Coast
The South Coast offers an unprecedented array of natural wonders that draw thousands of visitors each day. When driving the route from Reykjavík City, the highlights in their correct order are:
These attractions count for but a fraction of what the South Coast has to offer. The vast sand plains of Sólheimasandur are home to a crashed DC-3 Plane Wreck, and close to Seljavellir by the Skógar Village there's Seljavallalaug, one of the oldest swimming pools in Iceland.
South Coast