![](https://glaciology.wp.st-andrews.ac.uk/files/2017/02/tuna_cover.png)
Unexpected ‘surge’ of a Svalbard tidewater glacier
Most Svalbard surges are unexpected. After decades of inactivity, Svalbard glaciers can suddenly pick up speed and transform a smooth, safe snowmobile or skiing route into a fast-flowing, chaotic maze of ice pinnacles…