Lake Managua and concrete wharf was constructed and a sight seeing boat called "La Novia de Xolotlán" makes hour-long lake tours when there are sufficient tourists. About 20 fish species still survive in Lake Managua. While joined to Lake Nicaragua, the bull sharks of that lake cannot migrate to Lake Managua due to a high waterfall on the Tipitapa River. Lake Managua Lake Managua () (also known as Lake Xolotlán) (located at ) is a lake in Nicaragua. The Spanish name is Lago de Managua or Lago Xolotlán. At 1,042 km², it is approximately long and wide. Similarly to the name of
Managua and reconstruction programs were expanded. New governmental buildings, galleries, museums, apartment buildings, squares, promenades, monuments, boat tours on Lake Managua, restaurants, nighttime entertainment, and broad avenues have resurrected part of downtown Managua's former vitality. Commercial activity, however, remains low. Residential and commercial buildings have been constructed on the outskirts of the city, in the same locales that were once used as refuge camps for those who were homeless after the earthquake. These booming locales have been of concern to the government because of their close proximity to Lake Managua. The construction of a new sewer system and the redirecting of