Vatnajokull Glacier Cave, Iceland 

source - canva

Vatnajokull Glacier Cave is located in Vatnajokull National Park, Iceland. 

It is one of the largest ice caves in the world, stretching for miles beneath the Vatnajokull glacier. 

The glacier cave is formed by meltwater running through the glacier, 

creating tunnels and chambers within the ice. 

The ice within the glacier cave is incredibly blue and clear, due to the lack of air bubbles and impurities. 

Such as frozen waterfalls and ice sculptures.