Highlights: 
Vatnajökull glacier is the largest ice cap in Iceland and the third largest glacier in Europe, covering 8% of the island's landmass. Vatnajökull National park can be found in the south west of Iceland and is a popular spot for activities like glacier hiking from Skaftafell, boat tours and ice caving tours from Jökulsárlón glacier lagoon, both of which are part of Vatnajökull national park.
Facts about Vatnajökull
- Surface: 8,100 km2
- Average thickness: 400 - 600 m
- Maximum thickness: 1,000 m
- Height: 1,400 - 1,800 m
- Highest peak: 2,200 m (Hvannadalshnjúkur)
Information about Vatnajökull
Vatnajökull Glacier belongs to the greater Vatnajökull National Park, which encompasses the former national parks Skaftafell, in the southwest, and Jökulsárgljúfur, in the north. Vatnajökull's highest summit is Hvannadalshnjúkur which rests on top of a stratovolcano known as Öræfajökull.
Underneath the glacier rests some of the most active volcanoes in the country, the most notable being Grímsvötn, Öræfajökull and Bárðabunga. Volcanic activity in the region has occurred on and off throughout the centuries, and many geologists believe that such a period is overdue for immediate future. If their calculations are correct, it would mean significant volcanic activity for Vatnajökull over the scope of the next half century.
The glacier boasts of over 30 outlet glaciers, which are channels of ice that flow out of ice caps but remain constrained on the sides of the valley. The major outlet glaciers of Vatnajökull include Dyngjujökull in the north, Breiðamerkurjökull and Skeiðarárjökull to the south. To the west, one can find the outlet glaciers Síðujökull, Skaftárjökull and Tungnaárjökull.
Glaciers are in constant motion underneath their weight; as they form over the centuries, the accession of snow exceeds its melting, creating a constant "push" on the ice cap. Each year, due to the melting ice water, new ice caves form that disappear come spring.
Numerous rivers run out of Vatnajökull, making up some of the greatest glacial rivers in Iceland:
- Tungnaá (west)
- Köldukvísl (west)
- Þjórsá (west)
- Jökulsá á Fjöllum (north)
- Skjálfandafljót (north)
- Jökulsá á Brú (north east)
- Jökulsá í Fljótsdal (north east)
- Jökulsá í Lóni (south)
- Hornafjarðarfljót (south)
- Jökulsá á Breiðamerkursandi (south)
- Skeiðará (south)
- Núpsvötn (south)
- Hverfisfljót (south)
- Skaftá (south)
Vatnajökull National Park
Vatnajökull National Park, in its current state, was established in June 2008. The park now covers an area of 14.141 km2, making it the second largest national park in Europe. Vatnajökull National Park has 14% coverage over the whole island of Iceland.
Rivers divide the highland plateau to the north of the park; an area that sees massive glacial flows in the summertime. The volcanic table mountain Herðubreið towers over this particular region, along with volcanoes Askja, Snæfell and Kverkfjöll.
The canyon Jökulsárgljúfur was carved out by glacial floods centuries ago. At the upper end of the canyon, you'll find Dettifoss, the most powerful waterfall in Europe. Further north, the horseshoe-shaped canyon Ásbyrgi is believed to have formed when Óðinn's horse, Sleipnir, stepped his foot down from the heavens.
East around Snæfell, one can find wetlands and ranges, home to roaming herds of wild reindeer and abundant birdlife. Steep mountain ridges make up the south side of Vatnajökull, where outlet glaciers crawl in between the ridges onto the lowlands. The sandy plains of Skeiðarársandur also lie to the south as they reach out to sea. The glacial river Skeiðará runs through this vast desert.
One of Iceland's most visited landmarks is the Jökulsárlón glacier lagoon, which sits at the head of outlet glacier Breiðamerkurjökull. There, large icebergs that have broken off the glacier gather to float in the lake before ending up in the Atlantic Ocean, or on the nearby Diamond Beach.
The Future of Vatnajökull
The volume of Vatnajökull reached its peak around 1930 but has since been in a steady process of decline. Because of rising levels of global temperature, approximately over the last 15 years, Vatnajökull has on average lost about a metre of its thickness annually.
If temperature levels continue to rise, the glacier could be all but gone nearing the end of the next century, leaving only small ice caps on top of the highest mountain summits.
Vatnajökull and Jökulsárlón in Popular Culture
- HBO's Game of Thrones (season 2, 2012)
- Batman Begins (2005)
- James Bond: Die Another Day (2002)
- James Bond: A View to a Kill (1985)
Lakagígar, in the south of the Icelandic highlands, is a row of craters, formed during one of the largest eruptions in recorded history, known as the fires of the River Skafta, or ‘Skaftareldar’ in Icelandic. The area has some of the most stunningly attractive landscapes in Iceland.
The majority of the craters are today covered in moss.The total area of the lava field is 565 km² and the estimated volume of volcanic material is over 12 km². The Skaftáreldar eruption that formed the craters in the 18th century led to crop failure, disease and disasters in Iceland. Some believe that the airborne haze from the eruption, blocking the sunlight in the northern hemisphere, may have contributed to the French revolution in 1789.
Landmannalaugar ("The people's pools") is a vast area of stunning and unique beauty, the true heart of Iceland's southern Highlands.
Geology
Landmannalaugar is a truly rare area, both geologically and aesthetically. The area can be found nestled beside the raven-black Laugahraun lava field, a sweeping expanse of dried magma which originally formed in 1477. Landmannalaugar itself is made up of windswept rhyolite mountains, a rock type that creates a full spectrum of dazzling colour on the mountainside. Shades of red, pink, green and golden yellow all change their tone, keeping in movement with the sun rays and creating an area of wilderness that resembles no place else on earth.
Landmannalaugar is primarily known for its natural geothermal baths, hence its name "The People's Pools". For centuries, Landmannalaugar has served as an area of shelter and respite for weary travellers who use these soothing springs as a means to relax after tiring excursions. Today, visitors to the highlands should always bring a swimsuit and towel, just in case one of these naturally occurring hot pools should crop up along the hiking trail.
The most popular road leading to landmannalaugar, Sigölduleið, takes you past multiple stunning natural features, including Bláhylur lake, a magnificent body of water nestled in a dormant volcanic crater.
Hiking
The area marks the northern end of the Laugavegur, one of Iceland's most popular hiking trails. It is also home to many other notable trails, however, including the path onto the mighty Mt. Brennisteinsalda ("Sulphur Wave"). Visitors can also traverse the trail up the Bláhnjúkur ("Blue Peak") volcano, whose summit allows for a sweeping view of up to five glaciers on clear days.
Multiple operators run daily tours to Landmannalaugar from mid-June to mid-September, during which time The Icelandic Touring Association operates a small shop, three camp sites and a mountain hut equipped with sleeping bags and accommodation for up to 80 visitors.
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.
Photo from Tour to Skaftafell from Reykjavik.
Skaftafell Nature Preserve can be found in Öræfasveit, the western region of Austur-Skaftafellssýsla in Iceland. Skaftafell once used to be a national park in its own right but was merged with the far larger Vatnajökull National Park in 2008.
Skaftafell is notable for its rich flora, growing between sands and glaciers, and for its amazing and contrasting scenery. At Skaftafell, visitors will find a wealth of natural attractions, from cascading waterfalls to panoramic views over this picturesque region.
Like many areas along the South Coast of Iceland, Skaftafell Nature Preserve is known for its glorious hiking trails. You can take short and easy treks to the waterfalls Svartifoss and Hundafoss, as well as to the gorgeous Skaftafell glacier. A little further along, guests will stumble on the mountain, Kristinartindar, as well as the scenic Morsardalur Valley.
Skaftafell is also the perfect base camp for those seeking to climb Iceland’s highest peak, Hvannadalshnúkur, or for those wishing to spend a number of days exploring the region's attractions, including Vatnajökull glacier, Jökulsárlón glacial lagoon and the nearby Diamond Beach. It is also an excellent region to try your hand at a spot of either ice climbing or glacier hiking; both activities are two of the most authentically Icelandic experiences you can partake in whilst in the country.
Skaftafell Visitor Center
Skaftafell also boasts a Visitors Centre, acting as the main information and meeting point for tour operators and independent travellers. At the Skaftafell Visitor Centre, you will find answers to virtually any questions you might have about the greater Skaftafell area, including its history and geology. The Visitors Centre also contains information about nearby hiking trails, recreational options and accommodation.
Grimsvotn refers to subglacial lakes and a volcano of the same name that lie in the western part of Vatnajokull, Europe's largest glacier, in the Icelandic highlands. This volcano is the most active in Iceland.
Grimsvotn volcano
The volcano is of the the basaltic type and is mostly covered by ice. It measures around 900 m in diameter and up to 1000 m above sea level.
The volcano in the same fissure system as Lakagigar. Lakagigar's' eruption of 1783-4 was one of the greatest in historic times. Grimsvotn erupted at the same time and this eruption lasted until 1785.
Most of Grimsvotn's eruptions have been subglacial and the area has produced great glacier bursts, mostly from the glacier rivers Skeidara, Sula and Nupsvotn, with enormous amounts of water flooding south to the sea.
The name Grimsvotn alludes to the subglacial lakes, but is used for the whole volcano. A part of Grimsvotn volcano that protrudes through the glacier is known as Grimsfjall mountain. There the Icelandic Glacier Research Society has set up a cabin, but access to the cabin is severely limited. A prior agreement with the association has to be reached if one wishes to stay there, and in any case one should never travel the glacier unless veing highly experienced with it or accompanied by seasoned guides.
Recent activity
Grimsvotn has had several eruptions in the recent past. Week-long eruptions occurred in 1998 and 2004, the latter disrupting air traffic for a short term though no glacier floods occured at either eruption.
Some tremor was recorded in 2010 and 2011 saw an eruption that was Grimsvotn's strongest in a 100 years and lasted from May 21st to May 28th. While there were no glacier floods this time, the ash rose as high as 20 km and disrupted air travel widely in Europe, resulting in 900 flights being cancelled.
Possible future activity
It is believed that the recent eruptions may mark the beginning of an active period where an eruption may be expected every 2-7 years. Activity in the Bardarbunga stratovolcano has also been associated with an increased activity in Grimsvotn.
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.
