Nátthagi cave
Nátthagi is a lava tube in Hvammahraun lava field in Reykjanes peninsula, found in autumn 1992. The 400 meters long cave is quite easy to walk and navigate as it is 4 to 6 meters wide and has three openings. Because of many interesting colorful lava formations Nátthagi is among the more interesting caves in Iceland.
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