The Blue Lagoon is a geothermal spa in a lava field on the Reykjanes peninsula, about 20 km from Keflavík Airport. Its milky blue, mineral-rich water stays at about 37–39 °C, and the silica mud is part of the experience.
It sits close to the Sundhnúkur crater row, which has erupted repeatedly since late 2023. The lagoon has closed or been evacuated many times, including from November 2023, during the 2024 eruptions, after lava reached its car park in November 2024, on 1 April 2025 and on 16 July 2025, when it reopened the next day.
Getting there
Drive Route 41 (Reykjanesbraut) and then Route 43 (Grindavíkurvegur), and follow the signs, as some navigation apps show outdated routes. Buses run from Reykjavík and Keflavík Airport. You must book a time slot online before you go.
When to go
Open all year, but magma was still building up under Svartsengi in 2026 and another eruption is possible. Check bluelagoon.com and safetravel.is for closures before you travel, and expect closures or evacuations at short notice.
Good to know
- Book at least two weeks ahead, especially in summer.
- It is close to the airport, so it works well on an arrival or departure day.
- Never enter closed roads or hazard areas around Grindavík to see lava.
- If you have no car, book a Destination Blue Lagoon bus transfer with your ticket.
Sources: How do I get to Blue Lagoon (Blue Lagoon), Is it necessary to book online in advance (Blue Lagoon), Reykjanes eruption waning, Blue Lagoon reopened (Reykjavík Grapevine), One year after last eruption, Iceland still expects more volcanic activity (Iceland Review). Facts checked October 2026.
Drive times are approximate and depend on weather and road conditions. Check road.is and vedur.is before you set off.
