Tourists stand in the Blue Lagoon outside Reykjavik on 26 April, 2009. The Blue Lagoon's blue and green waters come from natural hot water springs flowing through rocks of lava. The lagoon might have some health properties. AFP PHOTO OLIVIER MORIN. (Photo credit should read OLIVIER MORIN/AFP/Getty Images)
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Nine million liters of relaxation
Thought to be bubbling with health benefits, this nutrient-rich water in Iceland's Blue lagoon draws people from all over the world.
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Chasing Life with Dr. Sanjay Gupta 18 videos
Tourists stand in the Blue Lagoon outside Reykjavik on 26 April, 2009. The Blue Lagoon's blue and green waters come from natural hot water springs flowing through rocks of lava. The lagoon might have some health properties. AFP PHOTO OLIVIER MORIN. (Photo credit should read OLIVIER MORIN/AFP/Getty Images)
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