Lava tube cave on the Reykjanes peninsula, accessible for self-guided exploration by experienced cavers.
About 900 meters of passable cave with varied terrain - you'll crawl, climb, and squeeze through narrow sections. Bring proper gear: helmet, headlamp, gloves, warm clothes.
The cave is free to enter but requires navigation skills and cave experience. Don't attempt without proper equipment or in poor weather.
Located close to Reykjavík, making it popular with those who know about it. Less crowded than commercial cave tours.
Guided tour