Harbour Development’s (An Irving company) Tug Swellmaster returned to Halifax with the Atlantic Chestnut in tow. Atlantic Chestnut is a St John NB based workboat, assigned to Atlantic Towing, which is also an Irving company – Older Atlantic Towing equipment seems to get passed on to Harbour Development and is Often found tied up at Pier 7, which can be found between Pier 9 and Halifax Shipyard.