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How cold is the Blue Lagoon in Iceland?

The water in the Blue Lagoon is heated to around 37-40 degrees Celsius (98-104 F). Due to fluctuations in weather conditions, the precise temperature may change month to month, however you can expect pleasantly warm waters year-round.



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Are swim suits required at the Blue Lagoon? Bathing suits are worn in and around all areas of the bathing lagoon, including the sauna. You can bring your own, or rent them from reception. You can also rent towels and bathrobes.

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Iceland is freezing in the winter months, but as soon as you plunge into the warm water you'll relax and recharge. In fact, I think it's even better when it's freezing outside! The Blue Lagoon is open throughout the winter months, and here's everything that you need to know about visiting it during the cold season.

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The runoff is filtered straight into the Blue Lagoon, which is what heats the water. That doesn't mean it's dangerous or toxic — far from it! It's still a geothermal pool with mineral-rich water. The Blue Lagoon is simply not the natural phenomenon that many people believe it to be.

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While these are great for your skin, they can leave your hair feeling dry and matted. To minimize these potential effects, we recommend that you avoid immersing your hair in the water for too long and that you rinse your hair with fresh water after exiting the lagoon.

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Likewise, you can purchase a swimsuit in the shop at Blue Lagoon. Is there a maximum time allowed in that water? You may spend as much time as you wish enjoying the water. Your entry ticket is valid for the entire day.

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Do you provide towels, bathrobes, or slippers? Our two types of entry tickets—Comfort and Premium—include the use of a towel. However, the Premium ticket also includes the use of a bathrobe. If you have a Comfort ticket and would like a bathrobe, you can rent them for ISK 1500 each.

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Many guests prefer to use flip-flops while walking in and around the water. If you would like to wear flip-flops, you may bring them with you or purchase them at the Blue Lagoon reception desk. Water shoes are allowed, but we don't offer them for sale.

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Blue Lagoon is just 20 minutes from Keflavík Airport and 50 minutes from Reykjavík. From either point of origin, simply take Reykjanesbraut (Highway 41) to Grindavíkurvegur (Highway 43) and follow the signs to Blue Lagoon.

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The Iceland Blue Lagoon is not a natural spring. While Iceland is a country brimming with natural hot springs, the Blue Lagoon actually isn't one of them. The land is natural, as is the lava that shapes the pool, but the hot water is actually the result of runoff from the geothermal power plant next door.

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The best time to visit the Blue Lagoon is in the evening to enjoy the midnight sun in summer or the northern lights in winter. The average water temperature is 102 F (39 C) all year. The Blue Lagoon is not natural and was formed in 1976.

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To enjoy a more peaceful and serene experience, it's best to visit the Blue Lagoon during off-peak hours. Visiting early in the morning between 8:00 AM and 9:00 AM or in the evening between 6:00 PM and 7:00 PM when it's quieter is a great way to avoid crowds and fully appreciate the natural beauty of the lagoon.

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We recommend that you remove any jewelry (rings, necklaces, bracelets, etc.) before entering the lagoon.

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Also be aware that if you lose your bracelet, you will be charged a fee. All guests must shower—without a swimsuit—before entering the Blue Lagoon.

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There is 1 bathroom for the whole area and one has to pay €20 for chairs and an umbrella to escape the heat. The sandy area is overcrowded and water sports are too expensive. We were glad the return boat let us back in early. It is a shame that such a great site is not equipped to handle the sheer number of tourists.

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There are instructions on the locker door as well. It is recommended that you leave all your jewelry and watches in the locker and the water might cause some damage to them. After having fun with the locker, you will need to shower before going into the lagoon. It is compulsory to shower and wash with soap.

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No, you shouldn't put on makeup to bathe in the Blue Lagoon, as the water could get dirty. In fact, this is one of the main reasons why it's mandatory to shower before entering the Blue Lagoon.

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make sure to remove your jewellery & contact lenses. Wear sunscreen & sunglasses. Stay hydrated. Remember to shower before and after getting into the Blue Lagoon.

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Depending on your hair type and how sensitive you are, you might want to use a shower cap or keep your head and hair out of the water. The Silica in the water is not harmful to your hair, but it can get stiff and difficult to manage. There is conditioning in the showers to help, but it might take a few washes.

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