This article continues to be updated, as five French explorers have been traversing Greenland's toughest terrain and sharing their progress via satellite phone.

NOTE: This expedition has now been completed. Make sure that you check out Max Lainé's recap of the final few days of Engagé, in his article which you can find here. Their goal is to complete 700km in 30 days. Here is a day by day breakdown of the obstacles they face and how they overcome them as a team.