Jamie arrived in Britain last night from Kuwait and began his run early this morning in frosty conditions.
Jamie is running on behalf of Many Miles for Mary which is a charity established by New Zealander Jamie in 2009, and takes on challenges to support various charities around the world.
The run will see him take on the equivalent of 2 marathons every day and will be his fifth feat of endurance.
Daily updates can be found on his facebook page.
