The Stillwater Ngākawau Line (SNL), formerly the Stillwater–Westport Line (SWL) and the Ngakawau Branch, is a secondary main line, part of New Zealand's national rail network. It runs between Stillwater and Ngakawau via Westport on the West Coast of the South Island. It was one of the longest construction projects in New Zealand's history, with its first section, at the south end, opened in 1889, and the beginnings of the Ngākawau Branch, at its Westport end, in 1875. The full line was completed in 1942. The only slower railway projects were Palmerston North to Gisborne, 1872 to 1942, and the Main North Line to Picton, 1872 to 1945.

A railway refreshment room is a catering facility attached to a railway station that was formerly common in Britain, Australia, New Zealand, and other countries that were formerly part of the British Empire. They were opened in the 19th century to serve passengers when trains did not convey catering facilities, and thus served passengers en route. Refreshment rooms were similar to tearooms, and generally served a variety of hot drinks, pastries, cakes, and light meals. With the introduction of buffet and restaurant cars, their importance began to decline.