A cave is a natural opening in the ground extending beyond the zone of light and large enough to permit the entry of man. Occurring in a wide variety of rock types and caused by widely differing geological processes, caves range in size from single small rooms to interconnecting passages many miles long.
Cuban passport. Cuban passports are issued to citizens of Cuba to facilitate international travel. They are valid for 6 years from the date of issuance, but have to be extended every 2 years. The cost of this passport is about US$500 (CUC 500) for every two years if one person lives in the United States. Until January 14, 2013, the Cuban government required that all Cuban citizens and foreigners such as foreign students that live in Cuba desiring to leave the country would have to obtain an exit permit (Spanish: Permiso de Salida).
passport cards passports cards cost $ 30 for adults and $ 15 for persons under 18 plus a $ 25 execution fee for both adults and minors according to the issuing agency the u s department of state travel state govpplications for passport books take longer to process the fee for a first time u s passport book or a renewal are the same $ 140 for both an adult s passport book and card plus the $ 25 execution fee or $ 110 plus the $ 25 fee for just an adult passport book