Cuba has become one of the most interesting countries in the Americas. It is a multiethnic country whose 11 million people, culture and customs derive from very diverse origins, including the aboriginal Taíno and Ciboney peoples, the long period of Spanish colonialism, the introduction of African slaves, and a close relationship with the Soviet Union in the Cold War. Cuba has two currencies, CUC and CUP, and it has been against the law to build a new church since 1959. Agua Viva is working in one of the poorest states of Cuba: Guantanamo. This area, although very poor, enjoys a beautiful coastline and the deepest part of the ocean in the Caribbean, an obvious result the on-going plate tectonics in the Yucatán Straits.