Well they definitely enjoy water for swimming, but they seem to enjoy living on land. Some wild geese spend much more time on land than on water, only entering it to bathe.
I don't know if it is bad to post on a old thread, but I see that you are anxious to see a african/chinese goose in flight, so here is a video of my young gooses first flight. She can now fly a lot farther and higher, I will post a new video soon.