Aerial view of the round black crater of Hverfjall with the access path in the foreground.

Free entry

Hverfjall

Hverfjall, also called Hverfell, is a tephra ring volcano east of Lake Mývatn that formed in an eruption about 2,500 years ago. Its black crater is roughly 1 km across. Two marked paths, from the north-west and from the south, lead up to the rim, and walking on any other route is forbidden.

Free entry

Free entry — no ticket needed

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