Having lived in Colorado, I thought I knew what dark skies looked like. In truth, I had no idea. Until I moved to New Zealand. How dark is it here? Well, in most places, on a partly cloudy night, the clouds show up as slightly grey, a bit lighter than the clear sky. Here in NZ, the clouds are completely black (because there is little/no light reflecting off them) and the night sky is actually a bit light (from starlight). The Milky Way is bright enough to cast shadows on the ground.
One of the great things about living in New Zealand are the dark skies. With very little light pollution, the stars are bright in the night sky. And one of the best places to see them is at Lake Tekapo, which is part of the gold-rated Aoraki Mackenzie International Dark Sky Reserve. And that is where we decided on our first Kiwi vacation.