Sarnia, Ontario – The Canadian Coast Guard’s seasonal search and rescue stations across the Great Lakes will open on the following dates: March 21: Amherstburg, Kingston, Port Dover, Port Weller March 28: Cobourg April 4: Goderich, Meaford, Tobermory April 11: Thunder Bay Waterways remain very cold at this time of year and take much longer to warm up when compared to …