The Cannery Mermaids have been charming and crooning to Maritime Festival crowds since 2011. Hard-working Morgana, flirtatious Narissa, and Cordelia the daydreamer love nothing better than to swim through the grounds of the Britannia Shipyards and share songs of the sea, pose for photos with land-lubbers and regale all with tuneful observations about life on and off the canning line and in and out of the water.