The Kwuna is on its way back to Haida Gwaii and should arrive by Saturday night (Dec. 21), says BC Ferries spokesperson Deborah Marshall.The newly-refurbished ferry is scheduled to be back on its Skidegate-Alliford Bay run first thing Monday morning (Dec. 23), putting an end to more than three months of tug-and-barge service on the 20-minute run.The Kwuna has been away at Allied Shipbuilders in North Vancouver receiving $5 million worth of refits and capital upgrades. The work included an overhaul of both main engines, the installation of two new evacuation slides, and a refurbished passenger lounge.