Coleraine’s David Burns and Maghnus Collins from Limerick have previously completed man-powered expeditions taking them the full length of Africa and the width of Asia.
The pair are the founders of Sand2Snow adventures and in the past five years have embarked upon expeditions across the globe.
These expeditions include a 17,550km unsupported cycle from Cape Town to Ireland.
The journey, which began in April 2009, took them through 19 counties over a continuous 11-month period in temperatures that ranged from -6 Celsius up to 42 Celsius.
The duo also ran a 260km foot race through the Sahara desert in October 2010.
The fifth of the five-day run was made up of a 100km run over 16 hours and the maximum temperature, on day one, was a sweltering 44 Celsius.
In January, Burns and Collins completed an incredible 16,000km trek from Istanbul in Turkey to Shanghai in China - it was dubbed the ‘Silk Roads to Shanghi.’
The 10-month undertaking was broken into three phases - an 8500km cycle from Istanbul to Kathmandu, a 1,000km run across the Tibetan plateau and a 4,000km paddle down the Yangtze river.
Their kayak there is the longest ever distance paddled on the river.
Throughout the course of their voyages, Sand2Snow Adventures have raised over €80,000 for charity.
Burns used to holiday as a child on Eighter Island, between Burtonport and Arranmore, while Collins, who finished his studies in law recovered from a broken back before opting to pursue his adventures.