Kaieteur falls in Postaro river, Guyana. If you have enough money, you can go to Kaieteur falls in Postaro river, Guyana. Because the transportation is poor, not so many people know about this beautiful object. The Kaieteur Falls drops 221m and spreads 100m from one side to the others. The current is so strong so that the power is often matched with Iguazu falls, Niagara falls and Victoria falls.