What You Need to Know About The Blue Lagoon

Posted by on 01 Feb 2017

What you need to know about the Blue Lagoon

The Blue Lagoon is one of Iceland’s most popular and most famous visitor attractions. In 2012 it was named as one of National Geographic’s 25 Wonders of the World. It’s a ‘must-do’ attraction when you’re in Iceland. Indeed, it’s a good reason to visit our country. #findareasontogo 

What is the Blue Lagoon in Iceland?

The Blue Lagoon Iceland is a geothermal spa that’s situated on an 800-year-old lava field on the Reykjanes Peninsula – a UNESCO geopark. It’s situated around 25 miles from Reykjavik, in southwestern Iceland. 

Back in 1974, the Svartsengi Geothermal Power plant began harnessing geothermal energy. The process created a reservoir of hot, blue seawater near the plant. People were naturally attracted to this unique-looking water and began to bathe in it. Those with skin conditions noticed that the water and the silica, algae, and minerals had a positive impact on their skin.

The number of visitors increased, and public bathing facilities were created. The lagoon was then relocated from the shadows of the power plant to its current location - a lava field on the Reykjanes Peninsula. Since then, the lagoon has continued to be enhanced for visitors with secluded areas, in-water bars, a restaurant built into a lava wall having been added, and an underground spa and viewing points of the volcanic landscape due for completion in 2017.  


The Blue Lagoon Iceland – a wonder of the world! #findareasontogo #bluelagoon #grayline #iceland

Where does the Blue Lagoon’s water come from?

The water comes from the depths of the earth. The Blue Lagoon Iceland’s water is known as geothermal seawater. It originates 2,000 meters below the surface of the earth. Here, seawater and groundwater meet to create geothermal seawater. Pressure causes this water to flow to the earth’s surface, taking with it substances that it passes through – like silica, algae, and minerals. These are what give the Blue Lagoon its rejuvenating powers. 

Why is Blue Lagoon blue?

The Blue Lagoon’s water looks blue as a result of the silica that’s within its composition. It reflects sunlight and this creates a blue hue. However, although it looks blue, the water is a milky white color. The blue comes about as a result of the water reflecting the sunlight. 

The water can at times have a hint of green, which is because of the algae multiplying in the sunlight. 

What is it like to be in the blue lagoon?

Being in the blue lagoon is a wonderful, unique experience.

The water in the blue lagoon is lovely and warm and is usually around 37°C and 40°C. It has proven health benefits for your skin. The surroundings are beautiful with the design of the lagoon and the facilities complementing the natural environment. 


The Blue Lagoon Iceland #findareasontogo #bluelagoon #grayline #iceland # GraylineIceland

How big is the Blue Lagoon?

The Blue Lagoon holds 9 million liters of geothermal seawater. The lagoon itself covers an area of 8,700 square meters and has a depth of around 1.2 meters on average. The deepest parts are 1.6 meters deep. It refills itself every 40 hours. However, nothing is wasted. The lagoon is based upon a geothermal eco cycle so it has no impact on the environment.

How can I get there? 

When you visit Iceland, the best thing would be to book a tour of the Blue Lagoon via a tour provider like us at Gray Line Iceland. We regularly lead tours to the Blue Lagoon. You can find out more via our website at grayline.is

The benefits of booking with Gray Line Iceland are that booking the tour means you will get access to the Blue Lagoon and entry is included in the price. (If traveling independently and without a tour, you will need to book ahead). The tour includes travel to the Blue Lagoon from Reykjavik, and back. We can pick you up at your hotel or guesthouse.  You can also stay for as long as you like – taking any of our scheduled buses back to the city.

To find out more about what our guests say about our tours in Iceland, visit our Facebook page or TripAdvisor page. You’ll find plenty of reviews and ratings, like this one from Kerry M who traveled with us in December 2016:

“A friend and I had an amazing time using Gray Line Iceland for the south coast waterfall and glacier hike, golden circle tour, northern lights mystery, blue lagoon and all of our airport transportation. They were on time, full of information, entertaining, clean and very courteous. I would recommend them to everyone and use them again in a minute!”

We’d love to welcome you when you visit Iceland and help you explore our wonderful country with our tours of Iceland, and of course, help you experience the Blue Lagoon. If you need any further information, please don’t hesitate to contact us at Grayline.is

Bless. Bless.

Gray Line Iceland team

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