1218-2233 - A close view of the glacier surface near Vík shows black volcanic sediment layered within blue ice as meltwater channels through. Horizontal image highlighting Iceland’s glacial geology and erosion patterns.

1218-2232 - A person wearing a yellow jacket and helmet walks across a glacier ridge surrounded by dark volcanic sediment and blue ice. Vertical image showing safety lines and the dramatic terrain of the Katla Ice Cave tour.

1218-2231 - A person in a yellow jacket and helmet photographs the glowing blue interior of the Katla Ice Cave while standing on a wooden walkway above meltwater. Vertical image showing the icy chamber and light reflections.

1218-2230 - A person in a yellow jacket stands on a wooden bridge inside the Katla Ice Cave surrounded by luminous blue ice walls and rushing water. Horizontal image showing scale and structure within the glacier.

1218-2229 - A wide view of the Katla glacier shows blue ice formations streaked with volcanic ash surrounded by rugged mountains. Horizontal image illustrating Iceland’s volcanic and glacial landscape.

1353-841 - Flowing Blue Ice Wall Abstract Details, Sapphire Ice Cave, Breithamerkurjokull Glacier, Vatnajokull National Park, Iceland

1353-840 - Flowing Blue Ice Wall Abstract Details, Sapphire Ice Cave, Breithamerkurjokull Glacier, Vatnajokull National Park, Iceland

1353-835 - Iceberg on Jokulsarlon Iceberg Lagoon backed by the Breithamerkurjokull Glacier, Vatnajokull National Park, Southern Iceland, Europe

1353-831 - Iceberg or Growler shaped like a Glass Slipper on Fellsfjara Beach, nicknamed Diamond Beach, near Jokulsarlon, Southern Iceland, Europe

1353-828 - Sapphire Ice Cave, Breithamerkurjokull glacier, Vatnajokull National Park, Iceland, Europe

1353-825 - Ice Patterns and Air Bubbles within Ice Blocks at Fjallsarlon Iceberg Lagoon, Vatnajokull National Park, Southern Iceland, Europe

1353-823 - Ice Blocks at Fjallsarlon Iceberg Lagoon backed by the Fjallsjokull Glacier, Vatnajokull National Park, Southern Iceland, Europe

1353-822 - Ice Blocks at Fjallsarlon Iceberg Lagoon backed by the Fjallsjokull Glacier, Vatnajokull National Park, Southern Iceland, Europe

1353-821 - Broken Ice Blocks at Fjallsarlon Iceberg Lagoon, Vatnajokull National Park, Southern Iceland, Europe

1353-815 - Glacier Ice Formations, Fjallsarlon Iceberg Lagoon, Vatnajokull National Park, Iceland

785-2546 - Winter snow at Rydal Water in the Lake District National Park, United Kingdom

1311-1241 - A snow covered vehicle from a late winter storm, Chino Valley, Arizona, USA

1353-812 - A Photographer shoots the Rapidly Receeding Svonafellsjokull Glacier, a tongue of the Vatnajokull Glacier, Southern Iceland, Europe

1353-811 - Panoramic image of the Vatnajokull Glacier in winter, viewed from Stokksnes Peninsular, Southern Iceland, Europe

1353-810 - The Svonafellsjokull Glacier, a tongue of the Vatnajokull Glacier, Southern Iceland, Europe

1353-808 - The Sapphire Ice Cave, Breiamerkurjokull Glacier, Vatnajokull National Park, Iceland, Europe

1387-871 - A winter view looking out in Tjeldsundet strait towards the Saetertinden mountain in Troms County, Norway.

1387-1108 - Iceberg swimming pool, Antarctica.

1387-1100 - During the preparation for an ice dive, a chainsaw is working its way through the ice. This picture is from the underside of the ice in a flooded limestone quarry in Karlstrup, Denmark.

832-406319 - Silhouette of woman in winter in Iceland under Skogafoss waterfall

832-406318 - Silhouette of woman in winter in Iceland visiting Skogafoss waterfall

1184-13963 - Ice road on the Yenisei river, Tura, Krasnoyarsk Krai, Evenki state, Russia

1184-13946 - Arctic circle monument, Salekhard, Yamal Peninsula, Russia

1184-13925 - Sysola river, Syktyvkar, Komi Republic, Russia

1311-1118 - View from the shore of Stone Dam Lake in the Kaibab National Forest, Arizona, USA

685-2949 - Aerial view of Mountain Range, Greenland, Denmark

1184-13862 - Mountains around Arabba, Unesco, Dolomites, Italy

1184-13851 - Overlook over the Dolomites from Sass Pordoi, Italy

1184-13842 - Mountains around Arabba, Dolomites, Italy

1184-13832 - Panorama of Sassolongo or Langkofelscharte and the Canazei ski slopes, Dolomites, Italy

1184-13821 - Icefall along the Lagazuoi mountain slope, Dolomites, Italy

1184-13810 - Mountains around Lagazuoi mountain station, Dolomites, Italy

1216-825 - Sapphire ice cave, Vatnajokull glacier, Iceland

844-39886 - Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

844-39875 - View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

844-39870 - View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

844-39867 - View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

1112-11817 - A view of ice-covered Phippsoya, the largest of the Sjuoyane Islands in the Svalbard Archipelago, Norway

1365-895 - Ice detail, River Etive, Rannoch Moor, Highland, Scotland, United Kingdom

1365-893 - Ice detail, River Etive, Rannoch Moor, Highland, Scotland, United Kingdom

1112-11805 - A view of Krossfjorden (Cross Fjord) on the northwestern side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11803 - A view of Krossfjorden (Cross Fjord) on the northwestern side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11802 - A view of the tidewater glacier in Isbukta (Ice Bay) on the western side of Spitsbergen Island, Svalbard Archipelago, Norway

1112-11801 - A view of Isfjorden (Ice fjord) on the western side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11800 - A view of Isfjorden (Ice fjord) on the western side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11799 - A view of Isfjorden (Ice fjord) on the western side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11798 - A view of Isfjorden (Ice fjord) on the western side of Spitsbergen Island in the Svalbard Archipelago, Norway

1112-11788 - Adult bearded seal (Erignathus barbatus) swimming amongst the ice in the Svalbard Archipelago, Norway

1112-11768 - Freshwater melt forming waterfalls in Austfonna, an ice cap located on Nordaustlandet in the Svalbard archipelago, Norway

844-39701 - View of Harpa Concert Hall and Conference Centre in the city centre in winter, Reykjavik, Iceland

844-39671 - View of Reykjavik Cathedral from Austurvollur park and gardens on a sunny day in winter, Reykjavik, Iceland

844-39667 - View of Reykjavik Cathedral from Austurvollur park and gardens on a sunny day in winter, Reykjavik, Iceland

844-39663 - View of wildlife on Tjornin lake and Lutheran Free Church on a sunny day in winter, Reykjavik, Iceland

844-39661 - View of Lutheran Free Church on a sunny day in winter, Reykjavik, Iceland

844-39656 - View of Tjornin park and Hallgrimskirkja on a sunny day in winter, Reykjavik, Iceland

844-39650 - View of morning mist in Tjornin park and Lutheran Free Church on a sunny day in winter, Reykjavik, Iceland

844-39646 - View of Tjornin park and Hallgrimskirkja on a sunny day in winter, Reykjavik, Iceland

844-39630 - View of swans and ducks with City Hall in background in the city centre of Reykjavik at dusk in winter, Reykjavik, Iceland

844-39620 - View of ornate buildings of Reykjavik from Tjornin lake at dusk in winter, Reykjavik, Iceland

1112-11647 - Sawyer Glacier calving from Tracy Arm-Fords Terror Wilderness area in Southeast Alaska, United States of America

1112-11608 - Johns Hopkins Glacier, Glacier Bay National Park in Southeast Alaska, United States of America

1112-11607 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11604 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11603 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11602 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11600 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11599 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11598 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11597 - Glacial iceberg detail from ice calved off the LeConte Glacier near Petersberg, Southeast Alaska, United States of America

1112-11596 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11595 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11594 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11593 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11592 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11591 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11590 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11589 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11588 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11587 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

1112-11586 - Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

844-39497 - View of the city skyline of Reykjavik from Tjornin lake at sunset in winter, Reykjavik, Iceland

844-39496 - View of the city skyline of Reykjavik from Tjornin lake at sunset in winter, Reykjavik, Iceland

844-39492 - View of the Lutheran Free Church in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39491 - View of swans and ducks with Lutheran Free Church in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39487 - View of swans and ducks with colourful buildings and city skyline in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39485 - View of swans and ducks with colourful buildings and city skyline in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39482 - View of swans and ducks with City Hall in background in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39469 - View of Hallgrimskirkja Church in the city centre of Reykjavik in winter, Reykjavik, Iceland

844-39463 - View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland

844-39460 - View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland

844-39459 - View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland

844-39458 - View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland

844-39457 - View of mountainous coastline North of the city seen from Reykjavik in winter, Reykjavik, Iceland

844-39454 - View of town and church from Hafnarfjorour Marina in winter, Hafnarfjorour, Iceland

844-39448 - View of Hafnarfjorour Marina reflecting in water in winter, Hafnarfjorour, Iceland