Step in to the ice age: a tour of Iceland's new Ice Cave – in pictures — theguardian.com

Once completed, the two main tunnels will merge to form a single 400m-long circular corridor – it will be 30m deep and extend 200m into the heart of the glacier. In addition, a small number of chambers are being hollowed out at various intervals along the tunnel to house educational exhibitions and provide information on the science of glaciers and the effects of global warming.

Read More