Addo is to be found in the lower Sundays River. This river rises in the Sneeuberg (Snow Mountains) near Nieu Bethesda, winds its way through the Eastern Cape of South Africa and passes through the Zuurberg until it debouches into the sea at Colchester.
The Eastern Cape is malaria-free which is ideal for hunting, game viewing and for holidays with children.
In winter, the Addo area enjoys mild days and nights that can be cold with occasional frost.
At the height of summer, between November and February, daytime temperatures can be high and sometimes exceed 40 Celsius. As humidity is generally low, the heat is seldom oppressive.
Rainfall averages about 450mm a year and is generally distributed through the year.