The Iguazú Falls are shared by the Iguazú National Park (Argentina) and Iguaçu National Park (Brazil). The two parks were designated UNESCO World Heritage Sites in 1984 and 1986, respectively. The semicircular waterfall is some 80 m high and 2,700 m in diameter and is situated on a basaltic line. Made up of many cascades producing vast sprays of water, it is one of the most spectacular waterfalls in the world. The falls are easily reached from either side of the Argentine–Brazilian border, as well as from nearby Paraguay.