The Congo river, formerly known as the Zaire, is the deepest river in the world: at some points the water can be up to 220 metres deep; the basin has a surface area of 3,457,000 square kilometres.
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Ottawa RiverThe Ottawa River is the deepest river in Canada as well as the deepest river in North America. This body of water reaches a depth of 318 feet. The river starts at Ottawa Lake and reaches its mouth at the Lake of Two Mountains and the St. Lawrence River.
2. Yangtze. On the opposite side of the equation the Yangtze, the second deepest river in the world at 656 feet (199.9 m) which is also the longest river to flow through just one country, China. And speaking of 'longest', it's the third-longest in the world at 6,300 km (3,914 miles) and the longest in Asia.
The Encyclopedia Britannica gives the length of the Nile as 6,650 kilometers (4,132 miles), to 6,400 kilometers (3,977 miles) for the Amazon, measuring the latter from the headwaters of the Apurimac river in southern Peru.
Quick Facts: The Amazon River in South America is the largest river by discharge volume of water in the world, and by some definitions it is the longest. The portion of the river's drainage basin in Brazil alone is larger than any other river's basin.
The Everglades is the world's slowest-moving river. When rain fills Lake Okeechobee, in south-central Florida, the lake overflows into the 50-foot wide, 1.5 million acre water filtration system and flows about one meter an hour toward the Gulf of Mexico, at the southern tip of the Sunshine State.
Underneath the surface of the Hudson River Estuary exists a wide range of river-bottom habitats-from the shallow, muddy bottom in the Tappan Zee and other shallow near-shore areas, to the deep, sandy bottom in the navigation channel that runs north to Albany.
The short answer is “Yes!” The long answer is that it depends on when and where. Issues like sewage outflow and algal blooms keep many areas along the Hudson from being swimmable, particularly after rainfall.