Kakadu's manifold ecosystems are teeming with ... Dedicate a few hours to the caves and valleys of Ubirr and Burrungkuy (Nourlangie) to find some of the oldest artwork in human history.

Orange skies give way to green floodplains at Ubirr. Lower down ... Here, at the eastern end of Kakadu National Park, nature’s annual cycles seem startlingly untameable. The swaggering changes ...