The Indian Ocean
The Mediterranean Sea borders northern Africa and southern Europe.
atlantic ocean
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A hot water bottle, band aids and bandages, stuffed animals and maybe water. I say maybe to water because they may not allow it through exports unless granted permission. If you have more questions ask a local Red Cross or Hospital near you associated with Red Cross. Or check the Red Cross website.
Unless you can walk on water, this trek is not possible. Your trek would take you across water from England to the south, and through Europe to the Bosphorus crossing into Africa. When you reach the tip of South Africa, there is nothing but open ocean to cross before reaching Antarctica.
Yes there is unsanitary water in Africa
filter or decant leaving behind the pebbles. evaporate the water leaving behind the sugar.
the Strait of Gibraltar
Whether you were in a saltwater pool or a fresh water pool you will feel heavier when leaving the water because while in the water you Will be relatively lighter.
Of course Africa has fresh water. Africa has a very hot dry climate and that makes it hard for people and animals to get fresh water.
Forty five percent of the water in Africa is polluted