Of all the rock formations in Iceland that are said to have been a troll at some point, Hvítserkur is my favourite. It looks like a 15-meter tall monster rising out of the sea. Pretty awesome. We visited it on an unusually sunny day which happened to be the day of the 8th anniversary of our wedding. It was high tide when we got there so we couldn't get closer to the rock. It was a beautiful spot nonetheless. I loved it and am glad that we found it even though its locations is a bit off the beaten path.
As we were driving out of the area, we were stopped by a young farmer who explained to us in broken English that the road was closed (in actuality, it was blocked by a tractor; it was a narrow, dirt road) because they were trying to get a flock of sheep to another pasture across the road. Three people were involved in the whole ordeal. They looked so frustrated and the flock of sheep so panicky. The whole thing lasted for about 10 minutes but I don't think we would have minded so much if it had lasted longer because it was actually rather entertaining to watch.
So, if someone asked me how many Icelandic farmers it takes to get a flock of sheep across the road, I'd confidently say: it takes three, and a tractor.