Remember the London commuter who raced the tube from Mansion House to Cannon Street station on foot?
James Heptonstall has become a viral sensation after he managed to make the 380 metre dash just in time to jump back onto the same carriage.
The popularity of this video led James to his next challenge, racing a Thames Clipper.
This time it look him along the crowded Southbank towards the London Eye, and he made it, despite all the tourists.
He joined Wake Up London to explain his next challenge.