It's been seven years since the Tour of Britain last visited Carlisle, but the city will play host to the start of Stage Four today.
Mark Cavendish was first over the finish line in Dumfries yesterday, after a tough day of challenging mountain climbs.
Competittors will leave Carlisle city centre at 11am before a blast down the wide roads to Penrith.
After a relatively easy start to the day, cyclists will face a Yodel Sprint in Shap and then straight into the Shap Fell climb.
After a long main road climb, they will reach the summit at 426-metres on the National Park border before a fast descent into Kendal.
Here they will face the second Sprint of the day outside the town's rugby club, before following the River Kent through Kendal and out towards Oxenholm for another mountain climb at Old Hutton.
The route then levels off as it passes back over the M6 and descends down into the Lune Valley and Kirkby Lonsdale. Next, the riders cross the Devil's Bridge and onto Caton via Tunstall, Melling, Hornby and Claughton.
They will tackle the final Sprint in Caton before heading for the last part of the stage towards Blackpool.