10.00pm - Read Hayden's latest blog HERE - and watch his Relive and GoPro videos from Stage 11 below.
7.44pm - The tweets say it all. So much respect for these guys.
7.40pm - Marcus gives us an update on Stage 11 and gives the unsung heroes of the 3 Tours Challenge some very well-deserved recognition.
6.38pm - Really tough day again for the team. 4,000m of climbing over 161km. Tomorrow will be the longest day they have in the saddle...
3.56pm - Perhaps not surprising that a video from Mr Southgate has sparked some serious interest from various sources - expect more to come!
10.00am - There have been some high profile people sending messages of good luck to Geoff and the team and this one will give the guys a huge boost:
9.06am - Don't forget that these guys are away from their families too whilst taking this on - tough.