It is also curious that thunderstorms happen in Iceland in winter, and are said never to occur during the summer.
From the 16th or 18th of June to the end of the month there is no night.
The sun appears only to retire for a short time behind a mountain, and forms sunset and morning-dawn at the same time.

As on one side the last beam fades away, the orb of day re-appears at the opposite one with redoubled splendour.
During my stay in Iceland, from the 15th of May to the 29th of July, I never retired to rest before eleven o'clock at night, and never required a candle.

In May, and also in the latter portion of the month of July, there was twilight for an hour or two, but it never became quite dark.
Even during the last days of my stay, I could read until half-past ten o'clock.

At first it appeared strange to me to go to bed in broad daylight; but I soon accustomed myself to it, and when eleven o'clock came, no sunlight was powerful enough to cheat me of my sleep.

I found much pleasure in walking at night, at past ten o'clock, not in the pale moonshine, but in the broad blaze of the sun.
It was a much more difficult task to accustom myself to the diet.