National Waterways are designated bodies of water in a country that are managed for navigation and transportation. These waterways can include rivers, lakes, and canals that facilitate the movement of goods and people. They play a crucial role in a nation's economy by providing an efficient and cost-effective means of transport. In many countries, such as the United States and India, national waterways are developed and maintained by government agencies. These agencies ensure that the waterways are safe and accessible for commercial and recreational use. Additionally, national waterways can support environmental conservation efforts and promote tourism in surrounding areas.