ヴィーク発｜カトラ山にある黒い氷の洞窟探検ツアー

Katla is one of Iceland’s most explosive volcanoes, located underneath Iceland’s fourth largest ice cap, Mýrdalsjökull. Since settlement, it has erupted, on average, once every fifty years, with the last eruption in 1918. It is long overdue.

Katla is connected to Eyjafjallajökull, which erupted in 2010 and caused widespread disruption to air traffic, as well as changes in climate. Usually, Katla is triggered by an eruption here, usually going off within the decade afterwards. Kristín Jónsdóttir said in 2016 that it was ‘a matter of when, not if’ Iceland would face the wrath of Katla once more.

Katla means ‘Kettle’ in Icelandic, and many women are named after the volcano with it being one of the more popular girl’s names.

Geography and geology of Katla

Katla is located on Iceland’s South Coast, north of the village of Vík. Its peak is 1,512 metres (4,961 feet) above sea level, and its crater is 10 kilometres (6.2 miles) wide. The ice of Mýrdalsjökull is, 700 metres (2,300 feet) thick at certain points over it.

Because of this huge amount of ice, some smaller eruptions do not even break the surface. However, even these can be very dangerous, as they can still cause unexpected floods as the melted water seeps from under the glacier. One only needs to see the black sand desert of Sólheimasandur to see how much life can thrive in the glacial outwash plain under Katla.

Because of the floods caused by Katla, Iceland’s South Coast has very few settlements. Floods such as these have wiped out entire villages before.

The floods following the 1918 eruption were particularly powerful, clearing away huge swathes of land. The lava that followed, however, was so voluminous that it extended the southern coastline over five kilometres (eight miles) out to sea.

Though Eyjafjallajökull and Katla have a relationship of exploding in quick succession, they are part of different volcanic systems. Katla’s system has an area of 595 square kilometres (230 square miles), and is connected to the Eldgjá canyon.

Tours on Katla

Katla is beneath the peak of Mýrdalsjökull, which is surrounded by outlet glaciers, making tours on it few and far between - after all, it is very difficult to reach. Some helicopter tours, however, will make a landing here. Some super jeep tours also take the bumpy but beautiful path to the top.

It should be noted that there are ice caves above Katla, which are accessible for longer throughout the year than the ice caves at Vatnajökull. These ones, however, do not have blue ice.

Where to see Katla

Katla can be seen from the Ring Road, which encircles Iceland, by travelling along the South Coast, so long as the weather is clear. It will be visible for much of the drive, which also takes you passed features such as the waterfall Seljalandsfoss and the black sand beach of Reynisfjara.

It can also be viewed when visiting one of the glacier tongues of Mýrdalsjökull, such as Sólheimajökull, the most popular outlet for glacier hiking.

Vík í Mýdral, or just Vík, is the southernmost village on the Icelandic mainland, located 186 kilometres (110 miles) from the capital Reykjavík.

Often visited by those travelling the popular sightseeing route along the South Coast, it is a wonderful place to stop, recharge, and if you are taking your time, rest for the night. Though it only has around 300 residents, the village is very popular amongst tourists for its convenience and beautiful surrounding landscapes.

Features near Vik

Reaching Vík from Reykjavík takes approximately two and a half hours, and en route, there are many marvellous features to admire. Two of the country’s most famous waterfalls, Skógafoss and Seljalandsfoss, lay between the two destinations; the former has awe-inspiring power, whereas the latter can be fully encircled.

The glaciers Eyjafjallajökull and Mýrdalsjökull can also be seen on clear days; both of these cover volcanoes which are particularly explosive, with Eyjafjallajökull famously disrupting European air travel in 2010. Out to sea in especially good weather, the Westman Islands can also be seen on the horizon.

Just before Vík are the popular birdwatching cliffs of Dyrhólaey, where you can also find an enormous rock arch curving out into the ocean. This is one of the best places for birdwatching in Iceland, with thousands of puffins nesting here from May to August.

The village itself sits opposite one of the country’s most famous features: Reynisfjara black sand beach. Considered one of the world’s most beautiful non-tropical beaches, it boasts incredible geology.

Particularly of note are the Reynisdrangar sea-stacks, said to be two trolls frozen in the light of the morning sun as they tried to pull a ship into shore.

Though this beach makes for a lovely walk, particularly for those staying in Vík overnight, as they can see it under the midnight sun or northern lights, it has its dangers. Sneaker waves can be notorious here, so visitors should stay far from the water’s edge, and never go for a swim. Lives have been lost here before.

The route to Vík from Reykjavík is beautiful and continues to be so as you travel further along the South Coast, through the Skeiðarásandur black-sand-plains into Vatnajökull National Park. This beautiful region is often the final destination of those passing through Vík, as it is home to the largest glacier in Europe, the Skaftafell Nature Reserve, and Jökulsárlón Glacier Lagoon.

Of course, ambitious travellers will carry on from here to encircle the full country.

Wildlife around Vik

Vík, due to its closeness to the Reynisfjall and Dyrhólaey cliffs, has a rich birdlife. Short walks from the village will take you to the nesting grounds of gulls, fulmar, guillemots, and in summer, puffins.

Due to its coastal location, visitors to Vík have a decent chance to see seals on the shore. There is also a slim chance to see whales or dolphins; the twenty or so species that live in Iceland’s waters can appear at any time.

Services in Vik

Vík has a wide variety of public services, due to its remoteness and its importance in connecting the east and west of Iceland. There are gas stations, shops and cafes, a swimming pool, a wool factory that can be visited, and a wide range of accommodation options for all budgets.

Please note, however, that as the village has such a small year-round population, those with special dietary requirements should purchase their food from Reykjavík before departing.

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.