It is going through South America.
"The four new famous faces embarking on an epic 12,500 km race of a lifetime are:
Broadcaster Jeff Brazier and his son, Freddy
Actor Kola Bokinni and his cousin, Mary Ellen
Broadcaster Kelly Brook and her husband, Jeremy
Radio 2 host Scott Mills and his husband (then fiancé), Sam"
"Their journey begins in Belém, Northern Brazil - the gateway to the Amazon - and will pass through five checkpoints across the length of South America, to reach the finish line in the Andes, Frutillar in Southern Chile."