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Despite falling unconscious into a gorge, being bitten by a dog and getting mugged by a machete-wielding gang, Ollie Treviso walked more than 8,000 miles across the Andes in South America.
The 29-year-old from Swansea trekked through seven countries from the southernmost point of Argentina to the Caribbean sea in Venezuela.
"I'll never forget that feeling on the first day thinking, what have you done? I had a whole continent ahead of me, I had barely any money, I couldn't speak the language. It all felt so daunting to me," he said.
He said he was motivated to take on the "life-changing" challenge following a "dark period" due to the loss of a family member.
