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The glacier volcano of Eyjafjallajökull is notorious the world over for causing havoc to air travel in 2010, and stumping television anchors everywhere as they tried to pronounce it. 1651 metres (5427 feet) tall, it is one of the most dominant features of the South Coast.

Geography

The glacier of Eyjafjallajökull is approximately 100 square kilometres (39 square miles), making it the country’s sixth largest. It sits close to the fourth greatest, Mýrdalsjökull, which also conceals another notorious volcano, this one called Katla.

While Eyjafjallajökull’s eruption was huge and disruptive, it pales in comparison to the potential of Katla. Far more explosive, and under much thicker ice, an eruption here in unfavourable wind conditions could have worldwide consequences.

The magma chambers between both of these mighty volcanoes are connected, and, unfortunately for us, an eruption at Eyjafjallajökull is usually followed by one at Katla within a decade.

Eyjafjallajökull has many glacial outlets, the most famous being Gígjökull. Many rivers flow from its meltwater, and one of these falls into the beautiful South Coast waterfall, Seljalandsfoss, which it is possible to fully encircle.

Eruptions

Eyjafjallajökull’s most recent eruption was no doubt the most famous in Iceland’s history (although the honour really should go to Laki, the 1783-4 eruption of which caused an ash cloud so great that Europe fell into a famine that many historians believe led to the French Revolution). On March 27th, 2010, magma began to bubble from beneath the surface, and by April 14th, ash was starting to billow from the peak.

800 people were evacuated, in fears not of magma, but of equally dangerous glacial floods, which have decimated Icelandic towns in the past. Animals were ordered to be kept inside, and those with respiratory problems told they should also stay indoors.

Air travel across Europe was halted, as, by the evening of April 15th, the ash was already over the UK, Scandinavia, and parts of Germany. Holidaymakers were trapped, waiting for news, and would end up stuck for eight days; in Scotland and Ireland, there were even flights delayed in May due to lingering effects.

Thankfully, no one was injured, although the ash is thought to have caused respiratory issues for some in the south of the country. Many farms were also destroyed by the ash and floods, with some farmers still struggling to recover today.

Since settlement in 874, Eyjafjallajökull has also erupted in 900, 1612, and from 1821 to 1823. The latter released a huge amount of fluoride which is believed to have affected the bone health of humans and animals alike at the time.

Eyjafjallajokull today

Eyjafjallajökull is now entirely safe to visit and is seen on most tours of the South Coast in clear weather. In the town of Hvolsvöllur, there is a visitor’s centre on the volcano, which focuses on the experience of one family whose farm, Þorvaldseyri, was one of the many destroyed by the floods, lava and ash.

It is very unlikely that Eyjafjallajökull will erupt again any time soon, with hundreds of years between each eruption, but as mentioned, its neighbour Katla might start rumbling...

Sólheimajökull is an outlet glacier of the mighty icecap of Mýrdalsjökull on the South Coast of Iceland. It is one of the most easily accessible glaciers to reach from Reykjavík, just 158 kilometres (98 miles) away.

For those who are based in Reykjavík, it is by far the favourite spot on which to take guided glacier walks, competing nationally for popularity only with Svínafellsjökull in the south-east.

Geography of Solheimajokull

About eight kilometres long and two kilometres wide (five miles long and just over a mile wide), Sólheimajökull is an impressive feature. Due to the way it descends from Mýrdalsjökull, however, without a clear distinction between the two, it appears much bigger.

Mýrdalsjökull itself has many other outlet glaciers; overall, it is the fourth largest ice cap in Iceland. Beneath its thick surface is one of the country’s most infamous volcanoes, Katla.

The nearby Eyjafjallajökull erupted in 2010 causing widespread havoc at European airports. Throughout history, eruptions in Eyjafjallajökull mean that Katla will also erupt, and so the volcano is due to go off soon. However, volcanoes and all seismic activity in Iceland is highly monitored, meaning that it is perfectly safe to travel around the area and even take an ice cave tour in the glacier above.

Sadly, like all the glaciers in Iceland bar one, Sólheimajökull is shrinking rapidly. A glacier lagoon at its base reveals how quickly it is receding: the length of an Olympic swimming pool every year. It seems like this change is already an irreversible consequence of climate change, and it may be gone within decades.

Visitors to Iceland should, therefore, make sure they witness the ice-cap while it is still with us.

Sólheimajökull has several distinctive traits that separate it from other glaciers. Firstly, it is incredibly easy to find, laying just off of the Ring Road that encircles Iceland. Secondly, it is not surrounded by tall mountains, meaning those who ascend it can attain incredible views of the South Coast. Thirdly, it is home to many walls of ice that can be climbed up with ice axes on certain tours.

There are also crevasses that snake across the surface, spectacular ice ridges and formations, and a vivid colouration that dances between a gleaming white, electric blue, and ash black. Occasionally, you will even find an ice cave, though these can never be guaranteed.

A river runs from the meltwater of the glacier tongue, called the Jökulsá á Sólheimasandi. This river runs through a glacial outwash plain - otherwise known as a black-sand-desert - of Sólheimasandur to the nearby ocean.

Tours on Solheimajokull

Many day tours run from Reykjavík to Sólheimajökull, for glacier hikes or as part of a greater South Coast tour.

Greater South Coast tours include visits to other features, such as the incredible waterfalls of Skógafoss and Seljalandsfoss, the black sand beach Reynisfjara, and some even reach Vatnajökull National Park and the Jökulsárlón glacier lagoon.

Hidden crevasses and ice caves, slippery surfaces, and the threat of rock- or ice-falls all pose dangers on glacier hikes, but glacier guides have to pass several training courses to deal with these eventualities, making the activity quite safe for those in a fit state of health.

All guests are equipped with helmets, ice axes, and crampons, and should arrive wearing warm clothes and sturdy hiking boots.

It is forbidden to ascend glaciers without the correct equipment or training, for your safety and the safety of others. There have been injuries and deaths on Sólheimajökull before, and glacier guides have had to risk their lives to rescue those who flouted the rules.

Mýrdalsjökull is a glacier in the south of the Icelandic highlands. It is the country's fourth largest ice cap, covering nearly 600 square kilometres (232 square miles), 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. It is visited on some snowmobiling, ice caving and helicopter tours, and one of its glacial outlets, Sólheimajökull, is the most popular place in the country for ice-climbing and glacier hiking.

Eruptions beneath Myrdalsjokull

Since 2010, the world has known of the volcano beneath Eyjafjallajökull; after all, it halted European air travel for over a week and stumped news readers everywhere. Few, however, are aware of the much larger volcano right beside it.

Mýrdalsjökull 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. It is these ash clouds that lead to flights being grounded, crops and livestock poisoned, and have the potential to change the world’s climate.

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 'jökulhlaup', during eruptions, even when the lava does not break through the surface of the ice. These are as dangerous as the lava itself, having wiped out whole Icelandic villages before.

Historically, the area was little settled for this reason.

Katla is connected to the same volcanic system as Eyjafjallajökull and usually erupts violently a few years after Eyjafjallajökull does. As the ex-president, Ólafur Ragnar Grímsson said in 2010:

So it is currently several years overdue. 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 Myrdalsjokull

While there are no eruptions immediately imminent, tours continue to run onMýrdalsjökull, 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 Myrdalsjokull

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

The South Coast of Iceland is the country's most visited sightseeing route, along with the Golden Circle.

This incredible shoreline stretches from the greater Reykjavík area in the west to the magnificent Jökulsárlón glacier lagoon in the east and is lined with countless natural wonders such as cascading waterfalls, volcanoes, black sand beaches and glaciers.

Geography, Nature & Wildlife

The South Coast is the most easily accessible part of the country’s southern region, found along the Route 1 highway (the Ring Road), which encircles Iceland. The area consists of a diverse lowland that transitions between, marshlands, bays, cultivated pastures, estuaries and black sand deserts.

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 shoreline.

The region boasts vibrant bird life during all seasons. Freshwater birds nest in the marshlands and around the estuaries, while seabirds flock around the cliffs of Reynisdrangar and Dyrhólaey, including the North Atlantic puffin between May and August. Some species stay throughout the harsh Icelandic winter, including the northern diver, the loom and various species of gulls and ducks.  

Seals are often found along the shore, particularly around the Jökulsárlón Glacier Lagoon and Diamond Beach. As with everywhere in Iceland, you should always keep an eye out to sea, as whales and dolphins reside all along its coastline.

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 first major features are the two great waterfalls of Seljalandsfoss and Skógafoss, which sit beneath the notorious subglacial volcano, Eyjafjallajökull. On clear days from these beautiful cascades, the Westman Islands can be seen across the ocean.

A little further down the route is the glacier Mýrdalsjökull, which covers one of Iceland’s most explosive volcanoes, Katla. Many glacier hikes are taken here upon the outlet of Sólheimajökull.

The aforementioned Dyrhólaey cliffs are next, home to many seabirds. Even if you come outside of puffin season, they are well worth a visit; jutting out to sea is an enormous rock arch of the same name, which you can marvel at from many angles.

Adjacent to the village of Vík is the famous black-sand beach, Reynisfjara, home to the rock pillars of Reynisdrangar, said to be two trolls frozen by the light of the sun. Though beautiful, this area is gaining notoriety for its dangerous sneaker waves, so visitors should be sure to stay well away from the edge of the water, even on a calm, still day.

There are no landmasses between Reynisfjara beach and the continent of Antarctica, so you can imagine how the waves can build momentum.

After passing through Vík, you will cross the glacial sand plain of Skeiðarársandur, before entering Vatnajökull National Park, home to the largest ice cap in Europe, Vatnajökull itself, dozens of glacial outlets and the magnificent Jökulsárlón glacier lagoon.

While almost all of these sites can be seen from Route 1, they make up 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 within the Vatnajökull National Park is the dramatic Skaftafell Nature Reserve.

Less than a kilometre from Seljalandsfoss is the hidden gem of Gljúfrabúi waterfall, and short distances from Jökulsárlón you will find the Diamond Beach, where icebergs wash on the black-sand shore, and another glacier lagoon, Fjallsárlón.