Blue Lagoon
Bláa Lónið
Blue Lagoon
silica · Southern Peninsula
Hotter than 10% of Iceland springs (n=20).
More acidic than 40% of Iceland springs (n=20).
Mineral profile
Bar width reflects listing order, not measured concentration.
Suitability
At a glance
Getting there
Remote — over 5km from the nearest station
Cost
High
About this spring
This world-famous geothermal spa features striking milky-blue waters rich in silica and sulfur. The massive lagoon is surrounded by a dramatic, pitch-black mossy lava field on the Reykjanes Peninsula. Modern architectural facilities seamlessly blend luxury wellness with the raw volcanic environment.
Highlights
History
The lagoon accidentally formed in 1976 from the mineral-dense runoff water of the neighboring Svartsengi geothermal power plant.
Local residents quickly noticed that bathing in the mineral-rich pools dramatically cleared up chronic skin conditions like psoriasis. It evolved from a makeshift swimming hole into Iceland's premier international eco-luxury destination by the late 1980s.
Local guide
Arriving at this iconic spot feels like stepping onto another planet. Towering walls of black basalt lava rock frame the entrance. Wisps of white steam rise lazily into the crisp air. The stark contrast between the dark volcanic stone and the vibrant neon-blue water immediately captures your attention.
The bathing experience is deeply luxurious and therapeutic. The mineral-dense water coats your skin with a silky layer of white silica mud. You can float directly over to the swim-up bar for a refreshing beverage or visit the mask station to apply raw volcanic elements directly to your face. The ambient heat carries a faint scent of clean sulfur that clears your senses.
Make sure to pack a heavy leave-in hair conditioner and apply it before entering the water. The intense silica content is highly beneficial for your skin but will make your hair stiff for days if left unprotected. A waterproof pouch for your phone is also smart if you want to capture the dreamy landscape.
The best time to visit is during the early morning hours or late in the evening to avoid the largest tour groups. Booking your timed-entry slot weeks in advance is absolutely mandatory. After soaking, you can enjoy fine Nordic dining at the on-site Lava Restaurant which is built directly into a historic lava cliff.
Mineral chemistry
Simple thermal springs have lower dissolved mineral content but are valued for the pure therapeutic effect of heat immersion itself — easing muscle tension and improving circulation. Considered the gentlest introduction to hot spring bathing.
Standard precautions apply: avoid bathing within 30 minutes of eating, keep soaks to 10–15 minutes for first-timers, and hydrate before and after.
Similar springs
This beautiful alkaline bathing complex overlooks the volcanic terrain and craters of the Lake Mývatn region. The steaming blue pools are supplied with mineral-rich water drawn from depths of up to 2500 meters. Visitors can enjoy sweeping panoramic vistas of the surrounding geothermal landscapes while they soak.
This historic open-air pool utilizes a continuously flowing natural hot spring that feeds a stone-lined basin. A small active geyser erupts nearby every few minutes, casting thin plumes of steam across the pastoral landscape. The water remains perfectly warm year-round and maintains an authentic, old-world Icelandic atmosphere.
This luxury oceanfront geothermal spa features a dramatic seventy-meter infinity edge overlooking the cold waters of the Atlantic Ocean. The architectural design incorporates traditional Icelandic turf walls to replicate the aesthetic of historical coastal homesteads. A multi-step wellness ritual takes guests through steam rooms and cold plunges cut into artificial volcanic rock walls.
This sleek, architectural spa features multiple geometric black marble hot tubs fed by Europe's most powerful hot spring. The boiling geothermal water is cooled to safe bathing temperatures by mixing it with pure, glacial water sourced from the nearby Ok mountain. Two wood-fired steam baths and a relaxation room centered around an open wood fireplace complete the minimalist sanctuary.
Amenities
Getting there
Take Route 41 from Reykjavík, merge onto Route 43 toward Grindavík, and follow the clear signage directly to the spa parking lot.
Location & nearby
Norðurljósavegur 9, 240 Grindavík
Make a day of it
Pair your soak with these nearby spots.
Attraction
Blue Lagoon
0.1km away
Viewpoint
Þorbjörn
1.8km away
Common questions
What is the water temperature at Blue Lagoon?▾
The water temperature at Blue Lagoon ranges up to 40°C (minimum around 37°C).
Is Blue Lagoon free to visit?▾
Blue Lagoon charges an entrance fee in ISK.
Is Blue Lagoon a public or private bath?▾
Blue Lagoon is a public bathing spring.
Are tattoos allowed at Blue Lagoon?▾
Yes, Blue Lagoon welcomes visitors with tattoos.