Seven Falls of Guaíra

40 years ago, with the completion of the works on the Itaipu Hydroelectric Power Plant, on the border between Brazil and Paraguay, its floodgates were closed on October 13, 1982, and with that, the Itaipu Lake with area of 1,350 km², submerging the “Seven Falls of Guaíra” (Salto Guaíra), in Spanish Saltos del Guairá, which was the largest waterfall in the world by volume of water.