The Blue Lagoon, Iceland’s iconic geothermal spa, is more than just a place to bathe—it’s a surreal experience that blends natural wonder, wellness, and Icelandic culture. Nestled in the lava fields of the Reykjanes Peninsula, about 50 km from Reykjavík and a short drive from Keflavík Airport, the lagoon’s milky-blue waters shimmer against the dark volcanic rocks, creating a striking and otherworldly landscape.
The lagoon’s waters are rich in silica, algae, and minerals, substances long celebrated for their healing and skin-rejuvenating properties. Visitors float effortlessly in the warm 37–39°C water, often applying the lagoon’s famous silica mud masks, which leave skin soft and radiant. Many travelers find the combination of warm water and crisp Icelandic air both relaxing and invigorating—a sensory experience that is uniquely Icelandic.
Visiting the Blue Lagoon is not just about soaking; it is a full wellness experience. Modern facilities include saunas and steam rooms carved into the lava, in-water bars serving refreshing drinks, and spa treatments ranging from massages to facials. The Lava Restaurant, perched on the lagoon’s edge, offers a chance to savor Icelandic cuisine while overlooking the steaming blue waters.
The Blue Lagoon is accessible year-round, each season offering a distinct charm: in winter, the contrast of snow and blue water is magical, while in summer, long daylight hours make for a luminous bathing experience. Its proximity to Reykjavík and the airport makes it perfect for a relaxing stop on arrival or departure, or as part of a full-day Iceland adventure.
Origins and Geology
The Blue Lagoon isn’t a natural hot spring in the traditional sense. It formed in 1976 beside the Svartsengi geothermal power plant, when runoff water—rich in silica, sulfur, and other minerals—began to collect in the lava field. Instead of draining away, the porous basalt eventually sealed, creating a lagoon. The unique pale-blue color comes from how silica particles scatter sunlight, much like the way the sky appears blue.
Location & Getting There
The Blue Lagoon is in Grindavík, on the R ykjanes Peninsula:
20 minutes from Keflavík International Airport (KEF)
45 minutes from Reykjavík
Many travelers visit the lagoon immediately after arriving or right before departure, since it’s perfectly situated between the airport and capital. Shuttle buses run daily, but renting a car offers the most flexibility.
Tours & Transfers: Several operators offer shuttle buses, often combined with other attractions like the Golden Circle.
Why the Blue Lagoon Should Be on Your Iceland Itinerary
The Blue Lagoon isn’t just another stop on the tourist trail—it’s a quintessential Icelandic experience that blends nature, wellness, and wonder. Here’s why it deserves a spot on your itinerary:
A Natural Wonder With a Twist
Few places on Earth let you soak in steaming turquoise waters surrounded by black volcanic rock. The otherworldly setting feels like bathing on another planet. The lagoon’s milky-blue color, created by light scattering off silica particles, is unlike any hot spring you’ll see elsewhere.
Wellness for Body and Mind
The geothermal seawater is rich in silica, sulfur, and algae, known to nourish the skin and soothe muscles. A soak here isn’t just relaxing—it’s rejuvenating. Many visitors describe leaving the lagoon feeling renewed and glowing.
Year-Round Magic
Whether it’s midnight sun in summer or northern lights in winter, the Blue Lagoon adapts to the season. Snow-covered lava fields create a fairytale spa in winter, while endless daylight in summer lets you linger long into the evening.
Perfect Location
Situated just 20 minutes from the airport and 45 minutes from Reykjavík, the Blue Lagoon is logistically ideal. You can visit it right after landing to shake off jet lag, or as a soothing finale before your flight home. Few major attractions are this convenient.
A Complete Experience
The lagoon isn’t only about the water—it’s a full destination. Dine at the Lava Restaurant built into a lava cliff, indulge in spa rituals at the Retreat Lagoon, or stay overnight in sleek modern hotels with private lagoons.
Gateway to Reykjanes Adventures
Visiting the Blue Lagoon also places you at the doorstep of Reykjanes UNESCO Geopark, filled with steaming mud pools, tectonic rifts, coastal cliffs, and folklore-rich landscapes. It’s the perfect anchor for a day exploring Iceland’s fiery geology.
✅ In short, the Blue Lagoon combines Iceland’s volcanic power, modern comfort, and natural beauty in one unforgettable stop. It’s not just a spa—it’s an experience that captures the essence of Iceland.
What to Do at the Blue Lagoon
The Blue Lagoon is much more than just slipping into warm water. Here are the top activities and experiences to make the most of your visit:
Soak in the Geothermal Waters
The main attraction is, of course, bathing in the 37–39°C mineral-rich waters. Spend time drifting between the hotter and cooler areas of the lagoon, enjoy the steam rising over black lava rocks, and let the warm water ease travel stress.
💡 Tip: Plan at least 2–3 hours to soak fully and relax.
Silica & Algae Masks
Visit the in-water mask bar and try the famous silica mud mask (complimentary with admission). It cleanses and refreshes the skin. If you choose the Premium package, you also get an algae mask, rich in antioxidants and moisturizing properties.
💡 Fun moment: You’ll see everyone wandering around the lagoon with white masks on—it’s part of the ritual!
Sip at the Lagoon Bar
Swim up to the in-water bar for a drink. Options include smoothies, Icelandic beer, wine, or sparkling cider. Your first drink is included with most packages.
💡 Pro tip: If you want to stay hydrated, choose a fruit smoothie instead of alcohol.
Explore the Sauna & Steam Rooms
Tucked into the lava rocks around the lagoon, you’ll find a steam cave and sauna. Alternating between hot steam and a refreshing dip in the lagoon is invigorating, especially in cold weather.
Cold Water Therapy
For the brave: step into the cold plunge pools or walk under the refreshing waterfall. The water is icy, but the quick contrast is said to improve circulation and leave you feeling energized.
Upgrade to the Retreat Spa
For a more exclusive experience, the Retreat Spa offers:
A private lagoon carved into lava rock.
A ritual circuit with silica, algae, and mineral scrubs.
Relaxation rooms with panoramic views.
This is the luxury version of the Blue Lagoon—perfect if you want peace and fewer crowds.
Dine in Style
Lava Restaurant: Built into a lava cliff, great for post-soak meals.
Moss Restaurant: Michelin-recommended fine dining with stunning views.
Spa Restaurant: Light, robe-friendly dining for spa guests.
Capture the Atmosphere
Sunrise and sunset offer magical lighting.
In winter, you might catch the northern lights dancing overhead.
In summer, soak under the midnight sun.
💡 Bring a waterproof phone case or GoPro for photos—you won’t regret it.
What NOT to Do at the Blue Lagoon
Even though the Blue Lagoon is a smooth and relaxing experience, there are a few mistakes first-time visitors often make. Avoid these so your visit is perfect:
Don’t Forget to Book in Advance
The Blue Lagoon is not a walk-in spa. Entry is limited and often sells out days or even weeks ahead, especially in summer and holidays. Arriving without a ticket almost always means disappointment.
Don’t Skip the Pre-Shower
Iceland has strict bathing etiquette: you must shower naked with soap before entering the lagoon. This is for hygiene, since the lagoon is not chlorinated like a pool. Private stalls are available if you prefer privacy.
Don’t Wear Jewelry
The water’s high mineral content can tarnish silver and damage delicate metals. Leave your rings, necklaces, and watches in the locker.
Don’t Neglect Your Hair
The silica-rich water makes hair dry and stiff. Always use the complimentary conditioner before and after bathing, and avoid dunking your head unless you don’t mind crunchy hair for a couple of days.
Don’t Expect a Natural Hot Spring
Many people assume the Blue Lagoon is a wild geothermal pool. It’s actually a man-made lagoon fed by geothermal seawater from a nearby power plant. This doesn’t make it any less magical, but it’s better to arrive with the right expectations.
Don’t Stay Only an Hour
While you can technically pop in for a quick soak, the experience is best enjoyed at a slow pace. Plan for at least 2–3 hours to try the masks, saunas, steam cave, and drinks at the in-water bar.
Don’t Overpack
You don’t need much—just a swimsuit and maybe flip-flops. Towels, conditioner, and hairdryers are provided. Bringing too much only makes locker juggling harder.
Don’t Rush In or Out
Part of the magic is in taking it slow—float in the warm water, let the steam settle on your skin, wander into the sauna, try the waterfall, and sip a drink while watching the mist rise. It’s not just about the soak—it’s about the atmosphere.
✅ Avoiding these common mistakes ensures the Blue Lagoon is as magical and stress-free as it looks in every photograph.
Tickets & Packages
Book online in advance (slots sell out fast):
Comfort: Entrance + towel + silica mask + 1 drink.
Premium: Comfort perks + robe, slippers, extra mask + Lava Restaurant reservation.
Retreat Spa: Luxury, with private lagoon and spa rituals.
Dining Options
Lava Restaurant: Built into lava rock, refined yet relaxed.
Moss Restaurant: Michelin-recommended fine dining with panoramic views.
Spa Restaurant: Light bites, smoothies, and snacks (robe-friendly).
Best Times to Visit
Early Morning: Tranquil, fewer crowds.
Evening: Romantic sunsets, chance of northern lights in winter.
Summer Nights: Soak under the midnight sun.
Where to Stay
The Retreat Hotel: Luxury suites, private lagoon access.
Silica Hotel: More affordable, includes a private lagoon.
Reykjavík Hotels: Good base for combining with city sightseeing.
Airport Hotels: Convenient for layovers and early flights.
Nearby Attractions & Mini-Itinerary
The Blue Lagoon sits in the Reykjanes UNESCO Global Geopark, a volcanic wonderland. Combine your visit with these highlights:
Gunnuhver Hot Springs (15 min drive)
Iceland’s largest mud pools and steam vents. Named after a ghostly legend of Gunna, a restless spirit banished into the earth. The bubbling mud and roaring steam feel almost supernatural.
Brimketill Lava Rock Pool (10 min drive)
A natural pool carved into lava cliffs by the Atlantic Ocean. Waves crash dramatically against the rocks—spectacular for photography.
Bridge Between Continents (20 min drive)
A footbridge spans a fissure where the North American and Eurasian tectonic plates diverge. You can literally walk between continents!
Reykjanes Lighthouse & Coastal Cliffs (20 min drive)
Iceland’s oldest lighthouse, perched on volcanic cliffs with sweeping ocean views. Popular with birdwatchers and perfect for dramatic sunset photos.
Kleifarvatn Lake (30 min drive)
A mysterious volcanic lake said in folklore to hide a giant worm-like creature. The black sand shores and geothermal activity nearby create an eerie, moon-like landscape.
Suggested Half-Day Itinerary
Morning soak at the Blue Lagoon (2–3 hrs).
Drive to Brimketill and watch the waves.
Visit Gunnuhver Hot Springs for geothermal drama.
Stop at the Bridge Between Continents.
Finish at Reykjanes Lighthouse for sunset views.
Best Seasons to Visit
The Blue Lagoon is open year-round, but each season offers a different atmosphere:
Spring (April–June)
Fewer crowds before summer peak.
Milder weather, blooming moss and flowers around the lava fields.
Long daylight hours—great for combining with Golden Circle tours.
Summer (June–August)
Warmest weather (10–15°C average).
Midnight sun: bathe under a glowing night sky.
Peak tourist season—book far in advance.
Autumn (September–October)
Fewer visitors than summer.
Early northern lights season.
Crisp, cool air makes the lagoon feel extra cozy.
Winter (November–March)
Snow-dusted lava fields create a magical setting.
Best chance to see the northern lights while soaking.
Cold outside (0–3°C), but water remains perfectly warm.
Short daylight hours—plan lagoon visits around mid-day for natural light
The Blue Lagoon is not just a spa—it’s a fusion of nature, science, and wellness that embodies Iceland’s volcanic spirit. Whether you float under the midnight sun of summer or the northern lights of winter, it’s an unforgettable stop that belongs on every Iceland itinerary.
