Myanmar is a rainy country, endowed with a wealth of rivers, streams and bodies of water. And while average annual rainfall in the Dry Zone is less than 1,000 millimeters, coastal regions can receive over 5,000 millimeters of rain over the same period. In other words, Myanmar on the whole is blessed with rich resources of freshwater, with a vast majority of this water flowing into four major rivers, the Chindwin, Ayeyarwady, Sittang and Salween and their associated tributaries.