Black sand lines the river at Hraunfossar. Hraun means lava.
We got to the Hvitsekur sea stack just as the last light was on the troll.
We'd had a long day of driving and very few of us were interested in photographing the eclipse, so I just walked up the hill behind our lodgings. I found that if I stayed below the crest of the hill, I was mostly sheltered from the wind and the lights from town.