Adelaide's Bortle 7 city skies give way to dark country quickly — the Adelaide Hills reach Bortle 4 within 40 minutes, and the dry interior beyond, including the Flinders Ranges, offers Bortle 2 darkness a few hours north. South Australia's dry Mediterranean-to-arid climate delivers reliably clear nights, especially in the warmer months. At 34.9°S, Adelaide has superb southern-hemisphere skies: the Magellanic Clouds, the bright galactic core overhead in winter, and the Southern Cross are all beautifully placed. The Outback to the north holds some of Australia's darkest accessible skies.