maximum, it means, according to the British claim, that part of the Strait lies in international waters. The ownership of Gibraltar and its territorial waters is disputed by Spain. Similarly, Morocco disputes Spanish sovereignty over Ceuta on the southern coast. There are several islets, such as the disputed Isla Perejil, that are claimed by both Morocco and Spain. Under the United Nations Convention on the Law of the Sea, vessels passing through the strait do so under the regime of transit passage, rather than the more limited innocent passage allowed in most territorial waters. Therefore, a vessel or aircraft has the freedom of navigation or overflight for the purpose of crossing the strait of Gibraltar. Power generation Some studies have proposed the possibility of erecting tidal power generating stations within the Strait, to be powered from the predictable current at the Strait. In the 1920s and 1930s, the Atlantropa project proposed damming the Strait to generate large amounts of electricity and lower the sea level of the Mediterranean by several hundreds of meters to create large new lands for settlement. This proposal would however have devastating effects on the local climate and ecology and would dramatically change the strength of the West African Monsoon. See also Vendavel, Westerly wind Perdicaris Park Floating suspension bridge Mediterranean Basin List of straits References External links Climate Control Requires a Dam at the Strait of Gibraltar —American Geophysical Union, 1997. Accessed 26 February 2006. Gone 12 February 2010. Dam design at http://www.agu.org/sci_soc/eosrjohnsonf3.gif Building the dam and letting the Mediterranean Sea completely evaporate would raise Sea Level 15 meters over 1,000 years. Evaporating the first 100 meters or so would raise Sea Level 1 meter in about 100 years. Project for a Europe-Africa permanent link through the Strait of Gibraltar—United Nations Economic and Social Council, 2001. Accessed 26 February 2006. Estudios Geográficos del Estrecho de Gibraltar—La Universidad de Tetuán and La Universidad de Sevilla. Accessed 26 February 2006. Old maps of the Strait of Gibraltar, Eran Laor Cartographic Collection, The National Library of Israel HOW TO SWIM ACROSS THE STRAIT OF GIBRALTAR By ACNEG The Straits of Gibraltar Swimming Association. Strait of Gibraltar Strait of Gibraltar Strait of Gibraltar Strait of Gibraltar Strait of Gibraltar International straits Strait of Gibraltar Straits of Africa Straits of Europe Straits of the Mediterranean Sea Geography of Southern Europe Geography of North Africa