This is an ice cave, known as "crystal Cave" on the frozen lagoon of the Svínafellsjökull glacier in Skaftafell, Iceland. This snow, which is up to 1000 years old has metamorphosed into highly pressurized glacier ice that contains almost no air bubbles.
Ice cave in the Skaftafell National Park in Iceland. Ice caves collapse and new ones form as each glacier grinds slowly towards the sea. Local guides can help you (without dying) find one. (Visit Skaftafell National Park in Iceland.
Photographing the Jaw-Dropping 'Crystal Caves' of Iceland
An Ice cave in Vatnajökull ice cap, southern Iceland. Vatnajökull is the largest ice cap in Europe, around km³ constanly changing it's formation. The texture on the "floor" is snow mixed with volcanic ash from Grímsvötn, last erupting May
The deep blue Crystal Cave of Svmnafellsjvkull (CORR) in Skaftafell, Iceland was created by the glacier from Vrffajvkull Volcano's icecap meeting the coastline. The deep blue color is due to centuries of compression removing air from the ice.