LS of buoy floating in calm water, sky in background. LS of freighter sailing. MLS of freighter "Coverdale" being assisted by tugboat. LS of freighter, freezing water. Front MSs of prow of "Coverdale" in lock. CU of prow, anchor wells, draught numbers as ship is raised in lock. PAN over city of Niagara Falls. HAS of rough rapids at head of falls, PAN to MLS of lip of horse shoe fall. MLS of water mist and rainbow, PAN up to top of falls. Shot of lip of falls, PAN down to rainbow. MS of "Coverdale" heading for lock in background. Shot of lock gates closing behind ship. Various shots from deck of ship, of flight lock in Thorold, of gates closing, of gates with water at maximum depth. Shots of freighter in lock from sides of lock. MLS of freighter in lock as seen through open gates. BOATING SHOT of concrete sides of lock as ship sails in. MLSs of bridge #4 tilting up, of lift bridge lifting. LAS of Main Street lift bridge at Welland as ship passes underneath. Shot of end of lock from bow of ship entering lock. CU of closed gate, TILT UP to top of lock. MS of water welling into lock. LAMS of ships whistle blasting. HAMS of lower part of gates as they open. Swish PAN from upper flight lock at Thorold to lower lock, ship moving in. Shots of Toronto waterfront from gradually decreasing distances.