In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: Stunned tourists in Argentina watched in amazement as they captured the rare moment an iceberg flipped over on itself, after a chunk of the glacier broke away. 
  
 The video, which has over 120,000 views on YouTube, is a rare chance to see such a phenomenon. 
  
 Icebergs themselves flip and rotate commonly but it is rarely ever seen by people, let alone recorded on film. 
  
 Filmed near the Upsala glacier in Argentina, the two minute video captures the whole incident as the iceberg breaks up enough to lose its balance, crashing into the water and turning over on itself. 
  
 The onlookers laugh and shout as they watch the iceberg's near side rise out of the water, with gallons of water streaming off its surface. 
  
  ||||| Rising from the depths: Tourist captures the incredible moment the bottom of an iceberg emerges from the ocean as it flips over 
  
 Giant, imposing and strong enough to bring down ships, they aren't often associated with sudden, dramatic movement. 
  
  
  
 But, as this astonishing video shows, icebergs can move very quickly when conditions suit - and without warning. 
  
  
  
 A lucky tourist on a boat journey was on hand to capture the incredible moment that an iceberg flipped over, bringing a huge mass of ice above the surface of the water. 
  
 Scroll down for video 
  
 Amazing: An enormous mass of ice emerges from the water 
  
 The phenomenon is not uncommon for icebergs, but it is rarely seen on video. Icebergs flip because they become unbalanced after melting and changing shape. 
  
 The video, which is less than two minutes long, was only uploaded on to the site yesterday, but it has already been viewed more than 37,000 times. 
  
 About 15 seconds into the clip, the top of the iceberg begins to sink into the water. 
  
  
  
 As it disappears beneath the surface, previously-unseen ice from the bottom rises out of the water, creating waves and spray. 
  
 Hidden energy: The iceberg apears static at the beginning of the video 
  
 Rising: Suddenly, the bottom of the iceberg starts to come into view 
  
 Colossal: The iceberg flips over, bringing more and more of its bottom above the water level 
  
 Spectators on the boat can be heard hollering and laughing as the ice comes into view. 
  
 The iceberg's transformation was witnessed by tourists visiting the Upsala Glacier, which is found in Argentina's Los Glaciares National Park. 
  
  
  
 The glacier, which stretches for 60 kilometres, was once the biggest in South America, but scientific tests suggest it is disappearing at a rate of 200 metres per year. 
  
  
  
 Excursions to the area are popular among holidaymakers visiting the south of Argentina. 
  
 Now watch the video... 
  
  
  
  
  
  |||||
A: 
It's not every day you get to see an iceberg flip upside down, but a tourist in Argentina did just that and posted the results on YouTube. It took place near the Upsala Glacier in Los Glaciares National Park, notes the Daily Mail. The Huffington Post says the iceberg flipped after a part of the glacier broke away.