Pedalling to school can be a bit tough but imagine doing it all the way around the world!
That's what one British adventurer has done. It's taken Jason Lewis 13 years to pedal 46,000 miles around the world.
He's travelled over five continents, two oceans and a sea to become the first to circle the globe on human power alone.
After dodging crocodiles he's now ended his journey by sailing up the River Thames in his pedal-powered boat.
Jason plans to caught the flood tide and carried his boat over Greenwich's Meridian Line, where his quest began.
He said: "The realisation is starting to creep up that it is all coming to an end and I will have mixed feelings when it does."