wow. next, we join the husband—and—wife team jason and tammie, on an incredible zero carbon adventure around wales, and so far they have completed almost 400 miles over hills and valleys under their own steam. now, it's time for them to tackle the spectacular and sometimes precarious welsh coastline in a boat powered just by pedal. we are on a circumnavigation of wales using just human power, so we're biking, we're walking, canoeing, pack rafting and using a specially designed pedal—powered boat. moksha is an eight metre by 1.5 metre boat made out of wood, that was designed and built back in the early �*90s to complete the first circumnavigation