The Traena Music Festival (Norwegian: Trænafestivalen) is held annually in Træna Municipality in Nordland county, Norway.
The islands are only accessible by ferry boat from the mainland in neighboring Lurøy Municipality.
Venues have included an ancient cave, a church with blacked-out windows (to block out the Midnight sun which shines for 23 hours a day), and tents.
There was not much land that could be farmed nor many trees that could be felled, but the richness of the surrounding ocean made it possible for people to settle.
Over the centuries that followed, the ocean richness has supported the small population of 400 people; these residents became important trading partners in the international fish market.