Pillars of Hercules

Otherwise known as the Straight of Gibralter, separates Gibralter, Spain and Tangier, Morocco through a narrow passage between the Atlantic Ocean and the Mediterranean Sea.

Nile River Delta

The Nile River Delta is one of the most expansive river deltas in the world. Cairo, Egypt marks the beginning of the fan shapped delta which spreads out into a lush agricultural region.

Okavango

This delta in north-west Botswana comprises permanent marshlands and seasonally flooded plains. It is one of the very few major interior delta systems that do not flow into a sea or ocean, with a wetland system that is almost intact. The Okavango Delta is home to some of the world’s most endangered species of large mammal, such as the cheetah, white rhinoceros, black rhinoceros, African wild dog and lion.