When the light is right it genuinely is one of the most beautiful sunsets on earth, and the village itself is a postcard. The catch: hundreds of people pack the castle ruins and narrow lanes an hour before, and you're elbow-to-elbow holding your phone over someone's head. The magic survives the crowd only if you accept the crowd is part of the deal.
Oia's sunset is the single most photographed and crowd-drawing event in the Cyclades; the Byzantine Castle ruins fill well before sundown · model-knowledge
Light quality is best with some high cloud; clear-sky sunsets can be a flat orange disc · model-knowledge