http://www.newsweek.com/tourists-huge-wave-glacier-collapses-lagoon-1382955

A group of tourists visiting a glacier in Iceland on Sunday were in for a shock when huge chunks of ice broke off and slammed into an adjacent lagoon, causing a large wave which forced them to run for higher ground.

The dramatic incident was captured on video by another bystander, mountain guide Stephen Mantler, who was standing atop a ridge above Jökulsárlón lagoon, where the spectacular Breiðamerkurjökull glacier ends, AccuWeather reported.