First broadcast: on BBC Radio OrkneyLatest broadcast: on BBC Radio Scotland Highlands and Islands
Getting to Southern America was a milestone for Mark Beaumont, but he still had to reach Argentina in time to climb Aconcagua - the highest mountain in the Western Hemisphere.
First broadcast: on BBC Radio Scotland MWLatest broadcast: on BBC Radio Scotland Highlands and Islands
Central America posed some unique challenges for Mark - he had to learn Spanish and despite being unaccustomed to spicy food eat enough calories to cycle 80 miles a day.
First broadcast: on BBC Radio OrkneyLatest broadcast: on BBC Radio Scotland Highlands and Islands
With snow, wind, ice and altitude all taking their toll, the certainty of Mark Beaumont reaching the summit of Denali, North America's highest peak, was far from assured.