Is Blue Lagoon natural or man-made?

Catching a glimpse of the milky-blue water against the black-rock lava fields, it may not come as a complete surprise that the Blue Lagoon is man-made. Runoff water from the nearby Svartsengi geothermal power plant trickles into the lava fields and a blanket of mineral-rich mud lines the foundations of the Blue Lagoon.



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Blue Lagoon – History It is not a natural hot spring – in fact, the water within is wastewater from the power plant! While at first glance this may put you off, it should be noted that the water in the Blue Lagoon is completely safe and contains only natural minerals.

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Lagoon depth The deepest part of the Blue Lagoon is 1.4m/4.7ft., but most areas are shallower. However, the bottom of the lagoon is naturally uneven, making caution an imperative.

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Iceland's newest man-made lagoon, The Sky Lagoon opened in 2021. It is naturally heated by geothermal activity, just like the Blue Lagoon and even though it is man-made, there's an ancient feel to the grottos and curvy stone infinity pool that looks out over the steely Atlantic Ocean.

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The Blue Lagoon holds nine million liters of geothermal seawater which is naturally renewed every 40 hours. Regular sampling of this natural resource—which is rich in salt, silica, and other minerals—shows that foreign bacteria do not thrive in the lagoon's ecosystem.

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Among the largest owners of the Blue Lagoon include Grímur Sæmundsson, the president and founder of the company, both via his holding companies and in cooperation with a fund in operation by Landsbréf , the company Blávarmi slhf. , owned by fourteen Icelandic pension funds, and Stoðir hf .

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The water is a mix of fresh and seawater and, according to the spa website, the unique algae plants and high concentration of silica directly benefit the skin. They claim the anti-bacterial effects of silica improve psoriasis and eczema and that the mineral water prevents premature aging.

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In fact, you can always touch the bottom of the lagoon standing up, so it is not like a swimming pool. The milky-blue depths aren't clear either, so you only really want to stick your head under the water to keep warm or perhaps wash off your mud mask.

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- Blue Lagoon. “Sounds like a weird question, but is there fish in the water at blue lagoon?” Nope, no fish.

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The Blue Lagoon was named because the water of the lagoon looks blue when reflected from the sun but in actuality, the water is a milky white color. And don't worry about the smell, the sulfur has been removed so there is no funky smell at all anymore.

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I would not recommend bringing your phone out if you have other means of taking photos – it's not worth the risk of damaging it. There's a lot of sulphur in the lagoon, which is why it has a distinct smell – one which will not be pleasing to most.

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The Blue Lagoon offers a variety of day visit, overnight accommodation and dining options.

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