Nordic Legends VIk Black beach BS filter. Reynisfjara Beach in Vik Just offshore from the black sand beach in Vík, the balsalt rock formations, Reynisdrangar, stick up out of the Atlantic like fingers. As the folklore goes, these spindly rock formations are actually trolls frozen in time. You see, trolls are night dwellers. They were trying to drag three ships ashore when they were caught in the sunlight and turned to stone.