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Blue Lagoon

The Blue Lagoon is a geothermal spa in southwestern Iceland, located on Reykjanes Peninsula which is only 38 kilometres away from the capital, Reykjavík. The spa is made up of a few swimming pools with milky blue water and is one of the main attractions of Iceland.

The picturesque lagoon is surrounded by mind-blowing landscape of lava fields covered with dark grey rocks. Emerald-green cushions of moss peacefully reside on lumps of lava, while the Svartsengi geothermal power station can be vaguely distinguished against the skyline. The place is unique in every single way, so it’s no wonder 300 thousand of tourist from all corners of the world flock to the lagoon year after year.
How did this majestic thermal pool come to be? Sea water penetrates into the deep right through the porous lava. Deep in the earth we find underground reservoirs that consist of sea water (65%) and fresh water (35%) that is heated to +100 °С. Going up to the surface the water cools down, as its temperature drops to +37…+40 °С. Since the water is rich in silica, it refracts light, which creates a colour of sublime beauty. Depending on the time of the day and the level of illumination the colour changes from bright turquoise to emerald and milky-blue.

Interestingly, both in summer and winter the temperature of water remains pleasantly comfortable for bathing, which allows the resort to be open for visitors all year round. Many find it particularly enjoyable to immerse in hot water of the pool while contemplating the splendour of the northern lights. These hot winter baths in Iceland, which is meticulously quilted with snow at this time, are a great way to relax and get your mind off things and thoughts about gloomy winter days.
Another reason why many people come is the healing properties of the water, as it is rich in minerals and blue-green algae. The mineral salts are believed to be therapeutic and ensure deep relaxation.

The water in the lagoon renews every two days, and the cleanness of the pools is ensured thanks to daily water withdrawal. The blue flag is yet another confirmation of its high status. The award is exclusively granted to the beach resorts that make sure their cleanness, service and safety live up to the highest international standards.

Source: https://wikiway.com/islandiya/golubaya-laguna/