The Landscape
A world sealed
inside its own walls
Some three million years ago a vast volcano collapsed in on itself, leaving behind the largest unbroken, unflooded volcanic caldera on Earth. Its rim rises over 600 meters above a floor of grassland, soda lake and acacia forest — a natural amphitheater for one of the richest ecosystems in Africa.
Because the walls are steep and the water permanent, an extraordinary density of wildlife stays resident year-round, including one of Tanzania's last strongholds of the critically endangered black rhino. This is also a UNESCO World Heritage Site, shared with the Maasai who still graze cattle on its rim.