The North walls again. At some points they have toppled into the sea.

Note the swallow. On some pictures there were many, I often edited them out, because it seemed I could not keep my sensor clean (it is a bother). At the otogar there were two groups of thirty each, that would fly almost straight into the wall, only to flank to the left at the last instance. They did this again and again, the most impressive flying I had seen for ages.