Epic journey
Ten countries, five deserts and one giant mountain range. It is Simon's toughest challenge yet - but just what is the Tropic of Capricorn?

Namibia to Botswana
Simon sees the spectacular sandy desert in Namibia and meets the Bushmen of the Kalahari in Botswana.

South Africa to Madagascar
Simon discovers giant rats clearing landmines in Mozambique and eats zebu penis soup in Madagascar.

Australia
Simon spots whales migrating South to Antarctica and meets Aboriginal communties living beside Uluru.

Chile to Brazil
Simon explores Chile's Atacama Desert and goes hunting with the Wichi community in Argentina.