Iceland's large New Year's Eve bonfires are called brenna.
Brenna means “bonfire” in Icelandic, and communities traditionally light bonfires during the New Year's Eve celebrations. Families and neighbors gather around them, combining the outdoor event with fireworks, singing, and other festivities. The fires are part of a long-standing Icelandic custom of marking the end of the old year.
Icelandic New Year's Eve also includes a notable fireworks tradition. Fireworks are sold to support rescue organizations, and residents often create a spectacular display around midnight. Reykjavík and towns around the country may have several communal bonfires.
Brenna should not be confused with Jólabókaflóð, the Icelandic Christmas-book tradition. Nor does the word refer to one single national fire: it is a general term for the bonfires held in different communities.