In the late 1920s, construction finally recommenced on the coastal line south of Wharanui, but this soon stopped again when the Great Depression's effects began to be severely felt. Public pressure for a resumption of work was strong, and as the economy was starting to improve in 1936 the government issued orders for completion in four years. In 1939, the line beyond Parnassus was opened to Hundalee, but the outbreak of World War II created more delays and the goal of completion in four years was not achieved. Construction continued through the war, and not long after the resumption of peace the northern and southern railheads met in Kaikōura. The Main North Line from Christchurch to Picton was completed and officially opened on 15 December 1945.