The milk carton regatta, takes place in August every year on the Leilupe River in Jelgava, Latvia, is one of the highlights of the Latvian ‘Milk, Bread, and Honey’ festival – also famous for culinary feats such as 25-metre-long loaves of honey bread, and a 600 kilogram rye-bread cake. All this bread and locally-produced honey is needed to feed such a large and hard-working naval force, because while the course is only 50m long, the contestants must use nothing but pure, Latvian muscle power to drive their craft to the finish line. And let’s face it, milk cartons are hardly the most aerodynamic of building materials!