Ключевые слова: africa, african, alone, bathing, common, dam, dangerous, destination, drinking, gazing, having, head, hippo, hippopotamus, hippopotamus amphibius, kruger, lake, looking, mammal, national, natural, nature, outdoors, park, partially, powerful, reserve, river, safari, solitary, south, southern, submerged, swimming, ungulate, waiting, watching, water, waterhole, wild, wildlife,