With the shoals and islands of the Georgian Bay numbering in the thousands, the fishermen of its waters have always had to be keenly aware of their environment. Through the years navigational aids have been developed to help fishermen, lumber boats, freighters and pleasure craft find their way. Discusses the Pointe au Baril barrel, Commercial fishing on the Bay & the Mink Islands, Lumber booms on the water & lumber hookers and the Canadian Coast Guard in Parry Sound.