There was a gorgeous sunset behind the impressive cone of Snaefellsjokull, the extinct (or at least dormant since 200 AD) volcano that was the setting for Jules Verne's A Journey to the Centre of the Earth.
Unfortunately that was followed by a rather bumpy night with 25 - 30 knots of wind, gusting a bit higher. However it wasn't dark that long and the sun soon re-appeared
Reykjavik seemed very close, though as Tristan pointed out it was still as far as a channel crossing from the Solent to Cherbourg.
We kept on sailing, as tight to windward as we could trim the sails.
Updated: Oops, originally mistook the photo to be sunrise when actually sunset - an easy mistake at that latitude, but now corrected.