In shortThey are not alternatives so much as opposites. Jökulsárlón is a natural glacier lagoon full of icebergs, about 370–380 km east of Reykjavík; you look at it, sail on it, and do not swim. The Blue Lagoon is a man-made geothermal spa on the Reykjanes peninsula, about 20 km from Keflavík airport, where you bathe in water of around 38°C. Comfort entry starts from 11,990 ISK.
≈0°CJökulsárlón water, icebergs
≈38°CBlue Lagoon bathing water
≈20 kmBlue Lagoon from Keflavík airport
370–380 kmJökulsárlón from Reykjavík
Side by side
| Jökulsárlón | Blue Lagoon |
|---|
| What it is | Natural glacier lagoon with icebergs | Man-made geothermal spa |
|---|
| Where | South-east, on Route 1 | Reykjanes peninsula, near Grindavík |
|---|
| You can | walk the shore, take a boat, kayak | bathe, sauna, steam bath, mud mask |
|---|
| Water | close to freezing, no swimming | about 38°C (37–42°C) |
|---|
| Entry | free; parking 1,110 ISK; boats from 7,100 ISK | Comfort from 11,990 ISK |
|---|
| Minimum age | none for the amphibian boat | 2 years |
|---|
| Time needed | most of a day from Reykjavík | a few hours; easy before or after a flight |
|---|
Which one fits your trip
- A short stopover with a flight from Keflavík: the Blue Lagoon fits; Jökulsárlón does not.
- You want icebergs, glaciers and Diamond Beach: Jökulsárlón, with a full day or a night in the south-east.
- You have a week and a car: both, at opposite ends of the south coast.
- Small children: the amphibian boat at Jökulsárlón takes any age; the Blue Lagoon admits children from two.
Jökulsárlón in one day from Reykjavík
Transport, guide and the 30-minute boat ride among the icebergs included.
14 hours · from $292 · ★ 4.7 (450 reviews)
About the Blue Lagoon
The water comes from the nearby Svartsengi geothermal power station; bathing opened in 1987. Since 2023 the Blue Lagoon has closed several times because of eruptions at Sundhnúkur nearby, so check that it is open before you plan around it.
About Jökulsárlón
The lagoon formed in the 1930s as Breiðamerkurjökull retreated and is the deepest lake in Iceland, up to 284 m. Swimming is out of the question; the boats, the kayaks and the shore paths are how you see it.
Boats on Jökulsárlón →
Blue Lagoon: bluelagoon.com (Comfort price, age, water temperature) and the Wikipedia article (location, Svartsengi, opening, eruption closures). Jökulsárlón: icelagoon.is. 4 October 2026.
Related
