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Everything you need to know about the Blue Ice Cave

The Blue Ice Caves are formed natural every winter. Like all ice caves, they begin as crevices in the glacier. As the glacier melts, water find its way into these crevices, making them expand and melt faster than the glacier itself. Over time, tunnels form and these tunnel will continue in this freezing and melting cycle. Sometime, the tunnel disappear altogether and other times, it becomes a gigantic hole. When all the right elements are in place, a cave appears. This is the typical formation of all glacier ice caves.

But what makes the ice cave blue? The refraction of light. Glacier ice is compact ice with little or no air within. As light passes through the glacier, only the wave-length of the blue light makes its way through the ice, making them appear blue. The more compact the ice is, the more blue it will appear. On certain occassions, there has also been purple, red and yellow ice.

What makes the Blue Ice Cave so special? They form naturally every year. At the beginning of every winter, the glacier experts will go onto the glaciers to search for these blue ice caves. Some years they find small ones, some years they find big ones. Sometimes, the caves are too unstable or unsafe for tourists and there is no guarantee that any will be found the following year. So, if you have the chance to see it, you should. You might never know if that chance will occur ever again.

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Review of the Guest

I really enjoyed visiting Iceland with a self-driving tour. We had a Kia Rio with an automatic gearbox, which helped us to reach all fascinating spots. The travel plan provided by the tour guide was very useful and helped a lot in planning, and saved us time. I'd recommend taking this tour if you don't like crowds and buses. - Oleksandr Yaremchuk, Ukraine
It was an amazing trip we had in Iceland. Our guide, Snorri, was very knowledgeable and funny. He is a very good driver too, understanding the Icelandic roads and weather very well. - Ann Kwee, Singapore
Everything was as advertised. We were pickup at the port on time and returned as scheduled. Very happy with the excursion. - Lourdes d, USA
Very friendly and helpful guide. The travel agent really helped us a lot in planning our trip and gave us very good advise. We managed to see the northern lights 3 out of the 5 nights we were there thanks to the expert knowledge of the local guides. - Amanda King, USA
It's a great trip! Beyond your imagination! By far the most beautiful place I have seen in Iceland! The guide is very knowledgeable and friendly. Also I visited a lovely horse farm and learnt a lot about Icelandic horses! - Phoebe Chen, China