No shortage of dirt in SA. Brazil is a good example. Try to go East - West in the Amazon basin, Pantanal; dirt even mudd, deep, bottomless. From Boa Vista to Georgetown, Guiana, dirt, jungle, river crossings. Bolivia, Peru, dirt. To Paraguay from Bolivia, dirt, trackless desert. Patagonia, Argentina #40 (I believe) dirt. You will be in dirt heaven. So bring your dirt bike, put on your goggles, and enjoy.