Lake Chippewa’s floating island that has to be boat-pushed every year

Every year, dozens of local boat owners in Wisconsin band together to move a giant floating island on lake Chippewa.

This floating island, known as the "Forty Acre Bog," is composed of peat, plant roots, mud, and even mature trees.

These trees act as sails, catching the wind and moving the island around the lake.

 Links :

• GeoEngineer : Lake Chippewa’s floating island that has to be boat-pushed every year