Best Hot Springs & Geothermal Lagoons in Iceland

Soaking in warm geothermal water is one of Iceland’s defining experiences, and there’s far more to it than the Blue Lagoon. The country’s volcanic plumbing feeds everything from polished luxury spas to natural pools in the wild. Here’s the spectrum, and how to pick what suits you.

Iceland’s geothermal lagoons, by style

Premium lagoons — the headline spa experiences:

• Blue Lagoon — the famous milky-blue spa on the Reykjanes peninsula, midway between Keflavík Airport and Reykjavík. It has its own dedicated guides — see Blue Lagoon tours.
• Sky Lagoon — a striking infinity-edge lagoon just outside Reykjavík, with an ocean horizon and a multi-step bathing ritual. The two are compared in Blue Lagoon vs Sky Lagoon.

Mid-range and regional lagoons — relaxed, often better value:

• Secret Lagoon — Iceland’s oldest natural pool, at Flúðir on the Golden Circle route.
• Mývatn Nature Baths — the north’s answer to the Blue Lagoon.
• Hvammsvík Hot Springs — sea-edge pools in a quiet fjord near Reykjavík.

Natural hot springs — the wild end of the scale:

• Reykjadalur — the “hot spring river” you hike to and bathe in, near Hveragerði.
• Other natural pools scattered around the country, free and undeveloped.

How to choose

• Want the iconic experience? The Blue Lagoon — see its dedicated tours.
• Want a modern spa near the city? Sky Lagoon.
• Want it relaxed and better value? Secret Lagoon or a regional lagoon.
• Want it wild and natural? A hot-spring hike like Reykjadalur.
• Arriving or leaving Iceland? The Blue Lagoon sits on the airport route.

Frequently asked questions

Which is Iceland’s best geothermal lagoon? There’s no single best — it depends what you want. The Blue Lagoon is the iconic choice, Sky Lagoon the modern spa near the city, and Secret Lagoon a relaxed, better-value option. Our comparison guide weighs up the two premium ones.

Are there free hot springs in Iceland? Yes — natural pools like the Reykjadalur hot-spring river are free to bathe in, though they’re undeveloped, so facilities are basic and you reach some on foot.

Can you visit a lagoon year-round? Yes. Geothermal bathing is a year-round pleasure — the water stays warm whatever the weather, and a winter soak can come with a chance of the Northern Lights.

Compare every geothermal soak, with live prices, on our hot springs & lagoons tours page.