Tourism is a major sector of the economy. The central location in the Swiss Alps meant that Obwalden was able to establish itself as a significant tourist location in the 19th century. Many facilities built for tourism now benefit the local industry and the population. Two of the mountains, namely Pilatus and Titlis, are the main attractions. Winter sports, in particular skiing and snowboarding, attract many tourist. The main resorts are Engelberg, Melchsee-Frutt, Lungern-Schönbüel, Mörlialp and Langis. During the summer, hiking and mountaineering are the main attractions. One-quarter of the population is directly or indirectly employed in the tourism sector.