The Tropic of Capricorn is one of the five major circles of latitude marked on maps of Earth. Its latitude is currently 23°26′11.3″ (or 23.43646°) south of the Equator, but it is very gradually moving ...

Simon Reeve presents a travel documentary as embarks on a journey along the Tropic of Capricorn, the line of latitude which cuts through Southern Africa, Australia and South America.