Video surveillance footage on the dock shows a group of people boarding the 130′ three masted schooner Silva in Halifax harbor at about 1:30 am, early Monday morning. They raised one sail and untied all but one mooring line. Around 5am, the remaining line parted and the schooner set out across the harbor on an unplanned cruise. By around 6am, the drifting schooner was sighted and towed back to her berth with minor rail and gangway damage. No other damge to other vessels was reported. The police are investigating the incident.