Cuba

Cuba's river network is well developed, with over 200 rivers flowing there. The longest is the Rio Cauto, 340 km (211 mi) long, which flows into the Caribbean Sea.

An excerpt from the article 47 facts about Cuba
Most of the rivers are located in the eastern part of the country. Of the 340 km of the Rio Cauto, only 80 km (50 mi) of the lower reaches are navigable. There are a small number of small lakes, and the reservoirs near the coast are saline. The largest lakes are Laguna de Leche and Laguna de Ariguanabo.