Bariloche grew from being a centre of cattle trade that relied on commerce with Chile, to becoming a tourism centre for the Argentine elite. It took on a cosmopolitan architectural and urban profile. Growth in the city's tourist trade began in the 1930s, when local hotel occupancy grew from 1550 tourists in 1934 to 4000 in 1940. In 1934 Ezequiel Bustillo, then director of the National Parks Direction, contracted his brother Alejandro Bustillo to build several buildings in Iguazú and Nahuel Huapi National Park (Bariloche was the main settlement inside the park). In contrast to subtropical Iguazú National Park, planners and developers thought that Nahuel Huapi National Park, because of its temperate climate, could compete with the tourism of Europe. Together with Bariloche, it was established for priority projects by national tourism development planners.