Puerto Iguazu is a border city in the province of Misiones, Argentina. The world-renowned Iguazu Falls are only 18 kilometers (11 mi) away from the city, and as a result the city has developed much of its infrastructure around tourism. The Iguazú Falls are waterfalls of the Iguazu River on the border of the Argentine and the Brazilian state of Paraná. They are the largest waterfalls system in the world. The name "Iguazú" comes from the Guarani words "y" , meaning "water", and "ûasú ", meaning "big". The falls are shared by the Iguazú National Park (Argentina) and Iguaçu National Park (Brazil) The fauna of the park includes several rare and threatened species: jaguar, jaguarundi, South American tapir, ocelot, tirica, anteater, the black-fronted piping guan, the harpy eagle, and the yacare caiman. One can also find birds like the great dusky swift and large toucans, mammals like the coatí, and a diversity of butterflies. The flora of the park also features lapacho negro and lapacho amarillo , as well as palmito trees and the 40-metre-high palo rosa.