That was the logistical nightmare for the team behind Race Across the World, which comes to its dramatic conclusion on Sunday.
The pairs were given the cost of a single airfare from London to Singapore, in cash – the catch being, they couldn’t take a single flight.
Oh and they weren’t allowed bank cards or smartphones. And had to check in at five checkpoints along the way, only learning the location of the next one when they arrived.
In full: https://www.bbc.com/news/entertainment-arts-47827316