 HMCS Mackenzie , a decommissioned Canadian Forces destroyer , was used for interior and exterior shots as USS Ardent . The ship had previously been used to shoot interior scenes for the climax of the episode " End Game " . The ship was repainted in order to more closely resemble an abandoned ship , a technique Graeme Murray referred to as " paint @-@ aged . " Originally docked at New Westminster Quay , the ship was relocated to the more remote location of Barry Point to avoid night lights when filming exterior shots of the ship . The move cost the show approximately $ 10 @,@ 000 . Mackenzie , once the lead ship of its class , was stripped and scuttled shortly after filming ended and now serves as an artificial reef off the Georgia Strait . 
