Bangladesh has some 24,000 km of rivers (about 290 in number), streams and canals that together form one of the most complex systems of inland waterways in the world (Fig. 2.1). The three main rivers are the Padma (Ganges), the Jumuna or Jamuna (Brahmaputra) and the Meghna. Together they form a dense network: nowhere in Bangladesh is more than a few kilometres from a navigable waterway. The Padma, Jumuna and Meghna meet at a confluence to the south of Dhaka and form the world’s largest delta, covering some 60,000 sq. km.