1 Herds of giraffe and waterbuck raced across the swamps in our shadow as we swooped on to the sandy airstrip.

2 The young waterbuck climbed up onto an island.

3 The confused waterbuck didn't know what the hippo wanted.

4 a herd of waterbuck lying on a sandbar downstream," Mark wrote.

5 Still fearful of the wild dogs close by, the waterbuck tried to return to the island.

6 A hippo cow and her calf approached the young waterbuck on the island.

7 A sharp eye helps spot shy creatures such as the waterbuck in the distance.