Both are geothermal pools with heated seawater, spa facilities, and strong visitor reputations. The choice between them comes down to a few concrete differences in location, price, and atmosphere. Here is a direct comparison.
Location and Getting There
Blue Lagoon: Reykjanes Peninsula, 48 km from central Reykjavík - around 45 minutes by car or 50 minutes by bus. Also 23 km from Keflavík Airport. The surrounding landscape of black lava fields is part of the appeal, but it requires a dedicated trip from the city.
Sky Lagoon: Kársnes Harbour, Kópavogur - 15 minutes from central Reykjavík by car, 20–25 minutes by bus (Route 35 from Hlemmur). Much more accessible for visitors staying in Reykjavík without a car.
Verdict: Sky Lagoon wins on convenience, especially for non-drivers.
Price Comparison (as of 2026)
| Package | Blue Lagoon | Sky Lagoon |
|---|---|---|
| Standard entry | Comfort ~ISK 9,990 | Skjól ~ISK 8,490 |
| Mid-tier | Premium ~ISK 14,990 | Sér ~ISK 11,990 |
| Premium/full spa | Retreat ~ISK 44,990 | - |
Sky Lagoon has no equivalent to the Blue Lagoon’s Retreat package - if a high-end spa day is the goal, Blue Lagoon offers more at that price point.
Atmosphere
Blue Lagoon: Large (5,000 sq metres of pool space), well-known, and in peak summer can feel crowded between 10am and 3pm. Capacity is managed through timed entry slots, but the lagoon is busy by any standard. The setting - white silica water in a black lava field, steam rising in all directions - is unique.
Sky Lagoon: Smaller, more intimate, and quieter on average. The 7-step ritual structure gives the visit a clear arc rather than an open soak. The infinity-edge view across the Atlantic is the visual centrepiece, particularly powerful at sunset in autumn.
What’s Included
Blue Lagoon (Comfort): Lagoon access, one drink, silica mud mask, towel, robe.
Sky Lagoon (Skjól): Lagoon access, the full 7-step ritual (cold plunge, sauna, steam, salt scrub, shower), towel, robe.
The structured ritual at Sky Lagoon is arguably more experiential - it takes you through a full contrast-therapy circuit rather than a free soak with a mud mask. Blue Lagoon’s Premium and Retreat packages add food and extended treatments.
Children and Age Restrictions
Blue Lagoon: Children aged 2 and over are allowed with Comfort and Premium packages.
Sky Lagoon: Minimum age 12. No exceptions.
If you’re travelling with young children, Blue Lagoon is the only viable option of the two.
Crowds and Booking Difficulty
Both sell out in advance, but the Blue Lagoon books out further ahead - sometimes weeks to months in summer. Sky Lagoon is slightly easier to book close to your travel dates, particularly for weekday visits.
Neither accepts walk-ins reliably. Book online before your trip for both.
Who Each is Best For
| Visitor type | Recommendation |
|---|---|
| Budget traveller | Sky Lagoon (ISK 1,500 less per person at base tier) |
| First-timer in Iceland | Blue Lagoon (iconic setting, bucket-list experience) |
| Couples without children | Sky Lagoon (Sér suite, quieter atmosphere) |
| Families with young children | Blue Lagoon (Sky Lagoon under-12 restriction rules it out) |
| Visitors near Keflavík Airport | Blue Lagoon (23 km from airport - ideal on arrival or departure day) |
| Visitors without a car | Sky Lagoon (direct bus from Hlemmur) |
| Aurora hunting | Sky Lagoon (better city proximity; aurora trips possible September–March) |
| High-end spa day | Blue Lagoon Retreat (no Sky Lagoon equivalent at this tier) |
Recommendation Matrix
Book Blue Lagoon if: This is your first trip to Iceland and the Blue Lagoon has been on your list for years, you’re visiting with children under 12, or you’re flying through Keflavík and want to stop en route.
Book Sky Lagoon if: You’re on a budget, you want a more intimate atmosphere, you don’t have a car, you prefer a structured ritual to an open soak, or you’re visiting in autumn hoping to see the northern lights from the pool.
Booking Tips
Book early. Both lagoons sell out in summer. The Blue Lagoon books out 4–8 weeks ahead at peak (July–August) — if your dates are fixed, booking the same day you land is too late. Sky Lagoon typically books out 1–3 weeks ahead in high season but is slightly easier to secure close to your travel dates, particularly on weekdays.
Choose your time slot deliberately. Midday slots (10am–2pm) are the busiest at both lagoons. For the Blue Lagoon, the 7am opening slot — where available — or slots after 4pm are significantly quieter. At Sky Lagoon, the late afternoon slot in September and October catches the Atlantic sunset from the infinity edge.
What to bring. Both provide towels and robes with entry. You may bring your own swimsuit (required) and flip-flops (useful). Waterproof phone cases are worth packing if you want photos in the water. Lockers are provided at both. Valuables can be stored; jewellery is best left at your hotel as the silica minerals at the Blue Lagoon and the saline water at both pools can affect metals.
Arrival day versus departure day. The Blue Lagoon is 23km from Keflavík Airport, making it a natural stop on arrival day or departure day. Allow at least 2.5 hours at the lagoon plus travel time to plan around your flight. Sky Lagoon does not work as naturally with airport logistics given its city location.
Cancellation policy. Both have strict no-refund policies within 24–48 hours of your entry slot in peak season. Check the policy before confirming, especially if your itinerary is weather-dependent or you are travelling with young children (Blue Lagoon allows children from age 2; Sky Lagoon minimum age is 12 with no exceptions).
Both are covered in more detail in the individual guides: Blue Lagoon Iceland and Sky Lagoon Reykjavik.
Book Blue Lagoon tours - combined transport and entry packages from Reykjavík.
Get travel insurance for Iceland - policies covering glacier hikes, F-road driving, and volcanic disruption.
Related Guides
- Geothermal pools in Iceland - Beyond the famous spas: municipal pools, natural hot springs, and free options
- Natural hot springs in Iceland - Free wild geothermal bathing spots across Iceland
- Reykjanes Peninsula guide - The Blue Lagoon’s location, with other geothermal and volcanic sites nearby
- Iceland budget guide - How to factor spa costs into your overall Iceland trip budget