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Secret Lagoon Iceland

The Secret Lagoon, or Gamla laugin, is Iceland's oldest swimming pool, a simple geothermal pool in Flúðir on the Golden Circle route. It has fewer facilities than the larger lagoons but a more relaxed, local feel, and it is easy to combine with a Golden Circle day tour.

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Visiting the Secret Lagoon

The pool itself sits at a natural geothermal temperature, warmer than a typical swimming pool, with a small geyser bubbling nearby.

Facilities include basic changing rooms and a small cafe, simpler than the Blue Lagoon or Sky Lagoon but enough for a comfortable visit.

It sits directly on the Golden Circle route, so it fits easily as a stop alongside Þingvellir, Geysir and Gullfoss.

Bring your own towel unless your ticket includes rental.

Questions people ask

How does the Secret Lagoon compare to the Blue Lagoon?

It is smaller, simpler and with fewer facilities, but also quieter and often more affordable, with a more local feel.

Is it on the Golden Circle route?

Yes, it sits in Flúðir, close enough to combine easily with a Golden Circle day tour.

Do I need to book in advance?

It is recommended, especially in summer, though it is generally less crowded than the larger lagoons.

Is a towel included?

Check your specific ticket, rental is sometimes available but not always included.

Can I visit year-round?

Yes, the geothermal water stays warm through all seasons.