Groote Beer is a 52 foot long (LOD) wooden sailing barge, built in Huizen, the Netherlands during World War II. Rumored to be built for German Air Marshall Hermann Goering. (Actual customer was a German industrialist named Temmler profiting from the war efforts.) The design is based on the shallow draft, leeboard equipped, sailing vessels designed as work boats in the North Sea and capable of carrying goods far inland on the canals of the Netherlands and elsewhere