Distance to go:
Ben and Tarka will cover 1800 miles starting from Scott's Terra Nova Hut at the edge of Antarctica to the South Pole and back to the coast again. That's equivalent to 69 back-to-back marathons hauling up to 200kg each (the weight of roughly two adult men) of kit and supplies necessary to survive.
Distances here are shown in statute miles.
Photos from Greenland
We've spent the last few days in the office unpacking and downloading everything following our recent training trip in Greenland.
Here are a few photos from the ice.
Keep your eyes peeled for a short video to follow tomorrow on our YouTube channel.