a power outage on June 16, 2019, that lasted most of the day and which may have affected 44 million residents of Argentina and others in Paraguay and Uruguay. Investigations were launched to determine the cause of the outage. Navigation To ease navigation a ship lock was built in the locality of Santa María in the Argentine side. This has a length of 270 meters, and width of 27 meters and a depth of 5 meters, which allows the passage of 12-foot draft boats. Tourism The area has an abundant fauna and there are areas for fishing. Fishing is regulated to protect and maintain fish populations, requiring fishing permits that can be obtained in the regional Office of Fishing. The Yacyreta Regional Museum is located in Ayolas. It exhibits archaeological objects, minerals and examples of specimens of the native fauna. The Animal Refuge of Atinguy is located 18 kilometres from Ayolas; its territory is roughly 100 hectares, where a great variety of flora and fauna of the region can be found. The refuge provides conditions for the animals to live in a natural environment. Even though the hydroelectric power station produces a relatively low amount of contaminants, the Bi-National Organization has set aside areas for the preservation and recuperation of the local flora and fauna, trying to reduce the consequences of the construction. From flooding, 11,000 animals from 110 different species were relocated. Currently, the Organization has a protected area of about 58,000 hectares, with plans for an eventual increase to 187,000 hectares . There is a centre for visitors and a track of 2,500 meters called "Akuti po’i" that serves to take guided tours. There are several hotels to stay in when visiting the place, such as the Hotel Nacional de Turismo and the Jasyretâ Apart Hotel. See also List of power stations in Paraguay List of power stations in Argentina Notes References Ribeiro, Gustavo Lins, Transnational Capitalism and Hydropolitics in Argentina: The Yacyreta High Dam. The University Press of Florida, 1994. http://www.rivernet.org/southamerica/parana_basin/yacyreta.htm External links Official Argentine site Official Paraguayan site Yacyretá, Energy of the future Yacyretá and Esteros de Iberá (Clarín Newspaper) Google Maps Satellite Image of Dam Dams completed in 1994 Energy infrastructure completed in 1998 Dams in Argentina Dams in Paraguay Hydroelectric power stations in Argentina Hydroelectric power stations in Paraguay Dams on the Paraná River Buildings and structures in Corrientes Province Geography of Misiones Province