Mark stays up late to talk to Tony Livesey about his epic adventure, and gives Amazon adventurer and Blue Peter presenter, Helen Skelton some handy tips.
To find out more about Helen in the Amazon, check out Helen's Amazon Adventure on the Blue Peter website.
Mark arrived back in Scotland on Tuesday with his faithful bike tightly packed up in a box. He was greeted at Edinburgh Airport by family, friends, press and followers of his successful nine-month journey from Alaska to Argentina.
After travelling 13,080-miles along the American Cordillera, Mark said he 'would probably sleep for about a fortnight now, nine months of pushing it takes it out of you.'
Mark added 'that it was good to be back and was blown away by the way the online world got involved. There were tough moments and lonely moments but I never felt alone in terms of support.'
Mark at Edinburgh Airport with his boxed up bike.
Continue to follow Mark on twitter as he attempts to wind down.
Keeping in line with our recent press cuttings from the finale of Mark's journey, watch his emotional interview with BBC Reporting Scotland's Sally Magnusson and an unexpected guest!
Keep up with the reflection and reaction of his journey on Twitter.
Mark talks to the MacAulay and Co team after a well deserved sleep.
At the end of his journey, Mark joined the Newsdrive team as he finally got to relax on a beach.
I have made it to Ushuaia, Tierra del Fuego! I think the records will show that I have been on the road from Anchorage, Alaska for 268 days, pedalled 13,080 miles through 12 countries and reached the summit of highest peaks in the north and south of the Americas. This isn't another world record, but it is a world first, as far as I know!
End of the road!
I'm ecstatic to be here, it has been my dream and focus for so long - but also a small part of me is sad that the simple but tough life of bike and camera has come to an end, again, at least for now!
Most of all I am looking forward to seeing friends and family who I haven't seen since last May and getting to see the documentary which I have been filming all along!
This journey has been so different than cycling around the world. I have gone at a pace which has allowed me to experience the world I was passing, and the scale of the online blogging has transformed the whole experience for me.
Mark's live tracker feed to the finish line in Ushuaia, Argentina
I would like to thank everyone who has been following and especially those who have commented and contributed regularly. It's a very unique journey that we have completed together, not only in the sense of the expedition, but because of the online community which has built up to be a part of the almost real time documentary - this is the future!
I will post more when I have caught my breath and maybe had a shower but just wanted to let you know all is well from the finish and to send my thanks for all your support!
Within minutes of finishing his epic adventure Greg spoke to an emotional Mark live on Radio 1.
Listen to Mark's pre-recorded interview with Radio 1's Greg James as he caught up with him for the penultimate time earlier this afternoon.
Geography expert Val Vannet has teamed up with BBC Scotland's Learning blog to bring us another fantastic geo-blog about the final leg of Mark's journey.
In this edition Val explains the theory behind Mark's continued battle with the winds of Patagonia.
Mark has almost reached the finish line keep watching the blog and Twitter for the latest updates from Argentina.
News from Mark.
Just had a good catch up with gregjames which will go out tomorrow. If I finish in time I will also try call in live - tune in if you can!
Listen to Radio 1 live from 1300 tomorrow for the latest.
The last evening ride of the journey. Mark enjoys the sunset and Atlantic Ocean with only 170 miles to go.
Keep up to date here on the blog and on twitter.
Mark talks to Greg James about having his tent blown down by gale force winds, and looks ahead to finishing his nine month journey around 8 days from now.
Listen to Mark's latest catch-up with MacAulay And Co. Only 700 miles to go!
There will be another Radio 1 catch-up on Thursday on Greg James too.
Mark latest stop was the city of Trelew in the province of Chubut, in the Argentine Patagonia.
Amazingly for a settlement in the far south of the Americas, Trelew, has a Celtic name and origin. The city was formed by early Welsh immigrants and is named in honour of Lewis Jones, a spokesperson who dealt with the Argentine government in the 1860s. Tre meaning "town" in Welsh and Lew is taken from the name Lewis. Literally, "The town of Lewis".
Trelew is the centre of many tourist points, including Central Meseta, the Valley of the Chubut River and Punta Tombo, where you can find the biggest penguin reserve in South America.
Which way is the wind blowing?!
The latest images from Patagonia, including the retro furniture from Trelew, can be found on Mark's Flickr photostream.
Mark will be continuing his regular updates on Twitter and with Greg James on Radio 1 as he reaches the final stages of his epic journey.
Mark chats to Greg James about reaching the last three weeks of his epic journey, and hopes to go for a cycle with Greg and his team, when he is back in the UK.
If you had trouble getting up for work this Monday morning then this video catch up with a groggy Mark alone in the open pampus of Argentina should make you feel better.
Not too far to go now Mark!
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