Explore the great lava tunnel Raufarhólshellir, one of the longest lava tubes found in Iceland.

The tunnel is located just 30 minutes from Reykjavík and is accessible the whole year round.

A journey into Raufarhólshellir is a unique experience and a great opportunity to witness the inner workings of a volcanic eruption as one walks in the path of lava that flowed during the Leitahraun eruption, which occurred east of the Bláfjöll mountains about 5200 years ago.