THE BIGGEST CARAVAN IN THE WORLD.mp4

Описание: Here we are moving the Drewry building at Halley research station, basically one of the biggest caravans in the world and its on ski's. It weighs 60 tones so 4 bull dozers and 4 tractors are all linked together to pull it out of it's hole into a new position. This happens every year to stop it from getting buried with snow.