Look at this place, it’s beautiful.
The Cinefex article on Thor: Ragnarok provides additional details on what appears to be a relatively simple location, spotlighting at least three elements that made up the finished shot.
Cinefex #156 indicates the scene was shot in a “field in Atlanta,” so the assumption is that the field outside Pinewood Studios, was that location. This is only conjecture.
Reference photos of the cliffs, ocean and coastal town in Norway are from the Lofoten Islands, Norway photo shoot.
Some of the coastal topology of the Norway scenes were based on Port Talbot, Wales, Anthony Hopkins childhood home, according to Cinefex #156.
(Thor: Ragnarok, 2017)