Andros island in the Bahamas has the largest collection of the blue holes. Andros is the largest island in the Bahamas and it more than 200 Blue Holes. Blue Holes are usually sink holes or underwater caves in shape of a circle.
Nile is considered the Father of African Rivers. It is Stretching for approximately 6,695 km across 10 different countries, the Nile River is the longest river in the world.
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