In late 2023 and throughout 2024–2025, a new and far more disruptive phase of volcanic activity unfolded on the Reykjanes Peninsula, centered around the Sundhnúkur–Hagafell fissure system near Grindavík. Unlike earlier eruptions, these events repeatedly impacted infrastructure, forcing evacuations and reshaping large parts of the landscape in real time. While active lava flows are no longer present most of the time, the area tells a powerful story of raw geological forces meeting human settlement.

NOTE: This is an active volcanic system, not a dormant site. Conditions can change rapidly, including sudden fissure openings, gas pollution, and road closures. Always check official updates before heading out, and be prepared to turn around if access is restricted. If there's ongoing activity, the roads in the area and Grindavík might be closed.

HOW TO GET THERE: For the best experience seeing the newest lava fields and eruption viewpoints from the Sundhnúksgígar eruptions, I recommend starting at the P1 parking area by Mt. Fagradalsfjall and taking Path B toward the craters and lava fields. The main trail is about 4.7 km (one way) to viewpoint B1 and 6.1 km to viewpoint B2, taking roughly 1.5–2 hours each way, depending on your pace and the weather. You don’t need to hike the full distance to enjoy great views — many people turn around after about halfway and still get excellent perspectives over the new lava and crater row. The trail is relatively even but gravelly and uneven in places, so sturdy footwear and weather-appropriate gear are important.

For more hiking options and information I recommend this site.

For up-to-date safety information and road conditions, I strongly recommend:

• https://safetravel.is/

• https://umferdin.is/en/region/southwest

QUICK NOTES:

• What it is: The eruption sites from the 2024–2025 Sundhnúkur–Hagafell fissure eruptions near Grindavík.

• Best season: Summer offers the safest driving conditions and best visibility, but access is entirely dependent on volcanic activity and official restrictions.

• Best time of day: Late afternoon and sunset provide dramatic light over the fresh lava fields and steam vents when visibility allows. Just make sure you'll make it back before it gets dark.

• Nice to know: This area is under continuous monitoring. Even if an eruption has ended, seismic unrest may still be ongoing. Always prioritize safety over proximity.