hills and ridges resulting from millions of years of erosion and varied wetlands. And you needn't spend hours scouting for wildlife here. Kakadu's manifold ecosystems are teeming with ...

Kakadu is known for its diverse ecosystems, including wetlands, savannahs, and sandstone escarpments. Credit: Instagram/@daniellecook Serengeti National Park, Africa: The Serengeti is a testament ...