The inspiration to apply hit Margo suddenly.
“I saw the race advertised and I just thought ‘that really speaks to me’. I was looking for adventure because I have a lot on in my life in Liverpool because I care for my mum.
“As soon as I saw the race advertised, just something, I have no idea, spoke to me and said, ask Mark. A voice kind of told me, ask Mark…
“I didn’t think twice. And very quickly I asked him and immediately he said ‘yes’.”
The pair did not want to reveal too much about what went on during filming to avoid spoilers – but said the “magical” journey towards the final destination – Mongolia – featured “real highs and really big lows”.
“I don’t think that’s a spoiler to say, that’s the nature of the race. Even the lows, there was absolute magic and alchemy in them,” she said.
“Some of the lows, that’s where the absolute gold is wasn’t it?”
“You find the treasure at the bottom”, Mark agreed.
Margo said she believed the excitement and joy in taking part in the race and the sadness of losing Julia would be relatable for people who have experienced loss.
“There’s beauty in holding both those things, of sadness and joy of life and honouring her,” she said.
The new series of Race Across the World begins at 21:00 BST on Thursday 2 April on BBC One and BBC iPlayer.