So despite trudging through heated sand at twice the altitude of their native city, Jonathan and David are doing well and keeping up the pace.
Excitingly, you can see exactly where they have travelled on their journey through our LIVE TRACKING map here: http://www.technology-group.com/live-tracking.html
Click on the points on the map to zoom in and discover their exact location details.
If you are curious as to how they are getting on, they are scheduled to be on BBC Radio Leeds on Wednesday at 10:10 am, live from their satellite phone. Tune into the show this week on this link to listen to their progress: http://www.bbc.co.uk/programmes/p024nj7g
Thanks again for your support.
Have a great day.