... Seattle is one of the Earthrace's stops on a five-month promotional tour that includes the West and East coasts.
At the various stops, he and the four crew members stay with volunteers who have heard about the boat. In various cities, biodiesel firms, such as Imperium Renewables of Seattle, donate the fuel.
For $5, today and Sunday from 10 a.m. until 6 p.m., visitors can board the Earthrace and hear from Bethune about his dream.
Regrets about the cost of it all?
"No," said Bethune. "You know, I do have the coolest boat in the world."