1. To the north of the main watershed in the reserve, the country is hilly, composed of sandstone, grass and many water-courses, nearly all of which dry up soon after the rains. At three places, there were small springs which dried up only in the worst years. Dams had been built at all those sites. The earth dam on the Deteema River was no sooner completed than a good rain storm increased the volume of water in it, but when the next storm came, before the dam had filled, it burst, leaving a great gap right at the highest part of the wall. Nothing daunted, we repaired the breach, only to have it burst again with the first flood of another rainy season.
2. There was a lapse of time, some years in fact, before any further repair work was done. The breached dam wall was an eyesore to my staff and I. For the third time, the whole wall was rebuilt and again it stood for only a short time after filling before it gave way.
3. The next time we dealt with that hoodoo dam of ours, we repaired it with the addition of concrete, and after that it held and is today one of the best game spots in the area. No sooner had that dam held back some water, even before it burst the first time, than quite a big crocodile put in an appearance. That was strange as the nearest water where crocodiles were known was the Deka River, not less than eight kilometres away. I was not aware until then that crocodiles wandered so far from permanent water and so early in the wet season, but more surprises were to come.
4. The next dam was built on the Mandavu River which was on Sinamatela Ranch, one of the blocks of land bought and added to the reserve. That dam, also an earth dam, burst before it was full, leaving a small pool instead of what should have been a good big stretch of water. Much to my surprise, there was a crocodile in the pool. Where the creature had come from, heaven only knows. The Mandavu River flowed into the Lukosi River, which in turn flowed into the Gwaai River. Except for one small pool about twenty-four kilometres below the dam, there was no water all the way to the Gwaai River which was at least forty-eight kilometres away.
5. When repair work was begun on the breach, we found a hole in the wall which had evidently been made by a crocodile. The sides were worn smooth where the creature's body had scraped along the hole, while its spoor was clearly seen on the muddy bottom of the hole. There, then, was the answer to our dam failures: in every case, a crocodile had obviously bored a hole into the soft earth bank below the water level, thus causing a burst when the dam finally filled.
6. The Deteema Dam had burst three times and now it was full again. We were confident that crocodiles had been responsible for the breaching of the wall. We, therefore, decided to try and rid that dam of those creatures before they damaged the wall again.
7. Accompanied by my two sons, Rodney aged twelve and Gerald ten, I camped at the dam and after dark set out in a small home-made metal rowing boat, armed with a shot-gun and a torch. We were all aware that there were at least two crocodiles. We soon located one of them. Rod had no difficulty in putting a shot into its head at quite close range. The body floated and we hauled it into the boat. We then rowed slowly up the dam in search of the other crocodile, when suddenly, the one we had in the boat showed obvious signs of life. We could not put another shot into it as that would have put a hole in the bottom of the boat. The crocodile, two metres in size, became rather too lively for our liking and I abandoned the rowing seat and we all took up positions in the prow and stern of the boat, with our feet dangling over the side.
8. In that position, we started to paddle for the bank, the side of which nearest us was steep, with deep water right up to the shore line, which was heavily wooded. Gerrie kept the torch shining on the crocodile while Rod and I paddled up to what we knew was a bare gravelly beach. Just as the boat was about to ground, we were greeted by a deep growl. Gerrie flicked up the torch and revealed four lions within about twenty metres of us. For a moment, we did not know what to do; however, we decided to try and drive the lions away, so we shouted at them and they made off into a patch of thick long grass. They, however, did not go far as we could still see their eyes reflecting the light of our torch.
9. I was out-voted when I suggested that we land and get rid of our crocodile, so I tried to despatch it by jabbing it on the head with a paddle, but that served only to bring it to instant life. It started thrashing about and uttering a low snarling sound. That seemed to attract the lions which came back to the gravel verge, approaching to within fifty metres of us. Shouting had no effect on them that time and Rod fired a shot over their heads. The shot startled them but they did not make off; they merely lay down.
10. Faced with a crocodile if we took to the water and the lions if we took to the shore, we were uncertain of what to do when the matter was decided for us by two of the lions starting up a full-throated roar. We began paddling madly for the opposite bank. Our crocodile lay still for a time and we made good progress but then the beast started crawling about the bottom of the boat which upset our balance as at one time all its weight was on one side and then on the other. In our precarious position, we were unable to shift our weight to counterbalance the crocodile's change in position and it looked, at times, as if our boat would capsize. If the crocodile had tried to climb out over the side, I am sure we would have capsized.
11. All that time, the lions were indulging in full-throated roars at intervals of about five minutes, but they were at least getting a little farther away each time. At last, we reached the bank and had to turn the boat stern first. With both Gerrie and I on the stern with our legs over the side and the crocodile at our end, we would have foundered if Rod had been the first out, leaving all the weight at the back of the boat. We managed to make it to the shore while Rod walked tight-rope-wise along the side of the boat to safety.
12. After a breather, we pitched the boat over, landing our crocodile on the bank. Rod then gave it another shot which put paid to it. That ended our crocodile hunting for the night and we rowed back to camp. The next day we managed to bag the other crocodile and hoped we had cleared the dam. It was some time before another – much smaller one – put up an appearance, but by then we hoped the dam wall had consolidated sufficiently to stand up to the crocodile's digging activities.
13. I am doubtful now if the crocodiles did, in fact, come from downstream. In each case, there was a small spring near the site of those dams with plenty of water during the rains. Although it has never been proved, we are now inclined to believe that those creatures lived in those areas and aestivated in some concealed spot during the dry season. Possibly they had excavated a hole in the deep damp soil near the spring. The entrance to such a hole would soon be trampled in by elephants and become quite invisible.
14. One year, a crocodile about two metres long found its way into the pan at Shumba. Where it came from, no one knows, and where it went to is equally mysterious, for it just disappeared during the wet season, and never appeared at any of the other pans on those parts. That was all the more remarkable because there was usually no water at Shumba during the dry season, until a borehole was sunk there.
15. Although crocodiles were far more widespread in that dry country than one would expect, it was a strange fact that there were none in the Nata or Makarakari drainage system. There was enough water and fish for them to live happily in that river system, but I never saw a sign of them there and the local people were emphatic that they did not exist in that area.
Adapted from Wankie: The Story of a Great Game Reserve, by Ted Davison, Published by Regal Publishers 1973.