On a Clear Day (2)

Another day, another walk, another cold wind, another clear day.
I am slightly intrigued by the cumulus clouds on the horizon. They aren't easy to see here but look at the tip of that far island and you'll see them, rising above the horizon. Cumulus clouds form over land, not over an icy sea but the only land in that direction is Finland, about 160 km away. Cumulus can grow to great heights but could I really see something 160 km away?