Thousands gathered in Patagonia Thursday to witness the collapse of an ice bridge at the Perito Moreno Glacier. The bridge's collapse, which sent massive chunks of ice plunging into Lake Argentina, gave tourists quite a sight to see. But spectators shouldn't blame climate change for the collapse. In fact, the phenomenon occurs roughly every four years and is actually is result of physics.
Want to learn how the ice bridge formed in the first place? Check out the stunning footage above.