Passing south through Europe and Africa, he crossed to South America by sea from Cape Town and proceeded up the west coast of the Americas, crossed from Alaska to Magadan in Russia, Japan then westward across China and Central Asia to return to Europe.
His journey included raising funds and awareness for a charity called Hope and Homes for Children.
In 2008, Humphreys competed in the Marathon des Sables, a 150 miles (240 km) run across the Sahara desert.
[3] In February 2009, Humphreys rowed across the English Channel with Major Phil Packer to raise £1 million for Help for Heroes.
[4] In 2012 he joined Marin Medak, Simon Osborne and Steve Bowens to row unsupported across the Atlantic Ocean.