The photographs were taken at the Jökulsárlón glacial lagoon in Iceland.
Located in southeast Iceland at the edge of the Vatnajökull glacier, Jökulsárlón glacial lagoon is one of Iceland's most popular tourist destinations.
With the Breiðamerkurjökull outlet glacier calving into its upper end and an extremely short river draining from its lower end into the ocean, this lagoon has undergone constant change since it began to form in the 1930s. At that time, the tongue of Breiðamerkurjökull reached almost to the sea and filled all of the depression now containing the lagoon. This depression was part of a deep valley which the much larger tongue of the last glaciation of the Ice Age had dug into the bedrock, far out into the seabed south of the present coastline. When that glaciation was over and the tongue retreated, the valley became filled with sand and other rock deposits, so that it had turned into good farming land by the time Iceland's settlers arrived in the late ninth century. Later, from the fourteenth to the end of the nineteenth centuries, the "Little Ice Age" caused tremendous glacial expansion, with Vatnajökull's outlet glaciers removing farmhouses and grazing grounds and covering whole expanses of the Southeast Iceland lowlands. By around 1890, as the "Little Ice Age" ended, the advancing Breiðamerkurjökull tongue had reached its greatest length, pushing much of the old sand and rock deposits out to sea.
When the climate started to warm up once more, the tongue again retreated, leaving behind a lagoon in the depression it had carved during the “Little Ice Age”. Today this depression contains both melt from the glacier and seawater which flows in with the tide. The incoming seawater is warmer than the glacial melt and, together with an ever-warmer climate, is causing Breiðamerkurjökull to retreat rapidly. Thus, even though the ice in this tongue continues to progress towards the sea at a speed of approximately 250 m per year, the snout of the tongue is losing ground and retreating, allowing Jökulsárlón lagoon to extend farther and farther inland every year.