Ontario Power Generation and S D & G Historical Society present “Sunken Villages – Canada’s Atlantis” on Saturday March 24 from 2 – 4pm at the St Lawrence Power Developmental Visitor Centre, 2500B Second Street West.    Artist, aerial photographer and pilot Louis Helbig will present a dramatic series of images from the air and through the water of the communities flooded by the construction of the St Lawrence Seaway and Power Project between 1954 and 1958. All workshops are free.  Further information at  www.opg.com or by calling 613-932-4563 ext 3520.