Kevin and Jonathan are spending a week trekking 80km across the Langjökull ice cap, climbing to 1,300m as temperatures drop to -15°C. The 400m runners are taking part in a team-building exercise with seven other potential 4x400m Belgian team-mates. Check back here for my daily updates on their progress.
Conditions have deteriorated - it is now -15°C - and we are stuck in our tents. Our hopes that the worst of it is over have been dashed and there is nothing we can do today but sit it out. Question: Journalism and sport, what do they have in common?
Answer: They can both lead you to do some pretty strange things at times. In the pursuit of sporting excellence at London 2012, the Belgian 4x400m team are trekking 80 kilometres across an Icelandic glacier. And where they go, we follow to report. So I find my Friday night skiing up the same said glacier - Langjökull - into howling wind and snow, and fast fading light - one of the most horribly brilliant things I have ever done. And for a first-time skier like me, it is sink or swim time.
Up the hill I follow Kevin Borlée, who has just won Belgian's Trofee voor sportverdienste - their equivalent of the BBC Sports Personality Of The Year award. During a morning spent packing our sledges in a warehouse in Reykjavík, he tells of his surprise at being awarded the prize - recognition for his recent 400m bronze at the World Championships in South Korea. "I'm happy, I did not expect to get it," he says. It is time to push on, and if the three-hour ride to the glacier in a monster ice truck is the pleasure part, then the group of us putting up nine tents in a blizzard, in the dark, is the pain. "That was an experience," says Jacques Borlée, with a dry wit that I must quickly become used to. "This was your idea," I remind the man who has just been named one of Europe's sports coaches of the year for his work spent training his twin sons and their athlete compatriots. It is already time to thaw out and yet we are barely a mile into this trip. Bedding down for the night, the hope is that we are over the worst of it.