Reykjanes Volcanic Activity: What Travelers Need to Know

What's actually happening

After roughly 800 years of dormancy, the Reykjanes Peninsula — the same peninsula Keflavík Airport sits on — entered a new active volcanic period in 2021. Geologists describe this as an extended cycle rather than a single event, and it's expected to continue intermittently for years, centered mainly on the Sundhnúkur crater row near the town of Grindavík, close to the Blue Lagoon.

Why this hasn't stopped travel to Iceland

The key detail: these are fissure eruptions, where lava rises through ground cracks and flows slowly across the surface in a contained, predictable way. This is a fundamentally different kind of event from the explosive, ash-producing 2010 Eyjafjallajökull eruption that grounded flights across Europe. Reykjanes-style fissure eruptions don't produce the high-altitude ash clouds that disrupt air travel — throughout the entire 2021-2026 activity cycle, Keflavík Airport has continued operating on a normal schedule, and flights have not been affected.

What does close, and what stays open

When activity increases, Icelandic authorities close specific roads, hiking areas or facilities directly in the affected zone — this is a precautionary, well-practiced process, not an emergency response. The rest of the country, including Reykjavik, the Ring Road, and virtually all major attractions, continues operating normally throughout. The Blue Lagoon itself has, at various points, paused operations briefly during the most active phases nearest to it, but has otherwise remained open through most of the activity cycle, with staff trained specifically in monitoring and evacuation procedures.

How to check current status before your trip

The practical takeaway

Iceland has remained genuinely safe and open to travelers throughout this entire volcanic cycle. If you're planning a trip, there's no reason to change your plans based on Reykjanes activity alone — just build in the habit of checking official sources for the specific areas you intend to visit close to your travel dates, the same way you'd check weather conditions before a winter road trip.