The port of Ghent, in the north of the city, is the third largest port of Belgium. It is accessed by the Ghent–Terneuzen Canal, which ends near the Dutch port of Terneuzen on the Western Scheldt. The port houses, among others, big companies like ArcelorMittal, Volvo Cars, Volvo Trucks, Volvo Parts, Honda, and Stora Enso. The Ghent University, the second largest university of Belgium by number of students, and a number of research oriented companies are situated in the central and southern part of the city. Tourism is increasingly becoming a major employer in the local area. Begonias have been cultivated in the Ghent area since 1860. Belgium is the world's largest producer of begonias, planting 60 million tubers per year. Eighty percent of the crop is exported.