jonny walker gets out front at the beginning and basically stays there.round the 180, goes back down the pier here after he leaps over a bunch more logs. it's time to fly. wee! down on to the lower level of this waterfront, and then out on to some floating docks. >> better make sure you keep your balance otherwise you're going to end up with your motorcycle at the bottom. i would think it would be kind of a challenge being in an area that narrow. >> incredibly challenging. that doesn't stop, though, at least one rider from trying to make a pass on jonny right here. that's as close as it ever gets. jonny continues to pull away even as this rider is bar-to-bar with him. now the course takes them up into this town of porto riding up the stairs. >> look how narrow that is. >> it's not just this slow-speed obstacle maneuvering. watch how fast he gets going here. >> oh. >> they climbed all the way up into town. it's time to go storming back down toward the waterfront. binding down these stone staircases. jonny walker's challengers are close but doesn't look lik