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You won't believe you are still on earth when you visit the Blue Lagoon in Iceland. People daubed in silica-mud, the rising towers of the nearby geothermal power plant and the rolling clouds of steam give the illusion of another world entirely!

Here's the science part: the seawater originates two thousand metres below the ground, where it is heated by earth's natural sources; at this depth it's a toasty 240oC while the pressure is thirty-six times the pressure found on the surface. The geothermal seawater comes into contact with cooling magmatic intrusions and captures the earth's minerals, resulting in the unique natural source known for its healing power – hey presto – hot mineral water.

The Blue Lagoon is obviously an ideal place for natural spa treatment! Massages can take place both inside the resort and in the lagoon itself and out in the fresh Icelandic air. Floating in the mineral-rich water, near to the lagoon's beautiful environment is a particularly unique route to relaxation.

Written by  John Johnston.

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