pitch-dark

Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.

Using a 5,000-name mailing list, Groupon sold 100 $25 passes to an experience involving one hour inside a pitch-dark, soundproof tank containing skin-temperature salt water.

Using a 5, 000-name mailing list, Groupon sold 100 $25 passes to an experience involving one hour inside a pitch-dark, soundproof tank containing skin-temperature salt water.