Vatnajökull Glacier in Iceland has retreated rapidly in recent years. As the ice has melted, a lagoon known as Jökulsarlón has formed and grown. This area is now a popular tourist attraction, with large chunks of glacial ice melting before entering the Atlantic Ocean. Sixty years ago, when the glacier reached all the way to the shore, Jökulsárlón did not exist and since the 1970’s it has more than quadrupled in size.