Fog
We finally arrive at the top and the views were as spectacular as we'd hoped for. Well, while we could see. Patchy fog (actually it's just our heads in the clouds) was drifting past continuously so one minute it looked liked we were standing on the top of the world, and the next moment you wonder if maybe your eyes have malfunctioned. When the cloud passes over, the city and surrounding vista vanish, to be replaced by a clean dark gray wash. It's like we've been cut off. And the two minutes later the fog passes and the city and mountains reappear.