Trena Festival in Traena
Traenafestivalen is a music festival held each July on the islands of Sanna and Husoya in the remote Traena archipelago on Norway's Helgeland coast, reachable only by boat. Established in its current form in 2003, building on a smaller local festival tradition from 1978 to 1998, it draws several thousand visitors a year to nine stages, including a natural sea cave, and was once named Norway's festival of the year.
Traena had a festival tradition long before Traenafestivalen took its current shape.