The prehistoric canoes that have been found in the Netherlands are dug-out canoes. They were made of hollowed-out trees. In te forest a suitable tree was selected and probably on the spot shortened, debarked and hollowed out. Moving a complete tree was just too heavy to do. The hollowing out was done by using axes made of stone, bone, antler or later of metal. Another way is to burn a cavity into the trunk with glowing coals and consequently cutting away the charred wood. On the basis of experiments we can conclude that two persons using axes of stone, bone and antler need about a week for one canoe. In the community called Pesse in Drenthe (NL), the oldest dug-out canoe of the world has been recovered. It is dated between 8,040–7,510 BC, i.e. the beginning of the Middle Stone Age.