sentences:  Towards the end of the century ecotourism became a pole of development, thanks to the Maipo river's suitability for white water rafting.As a commune, San José de Maipo is a third-level administrative division of Chile administered by a municipal council headed by an alcalde who is directly elected every four years.For the years 2012-2016 the mayor is Luis Pezoa Álvarez (RN), and the council members are