Here you go http://www.arkive.org/giraffe/giraffa-camelopardalis/video-ti06.html though this one is better http://youtu.be/wrJqJQGUiHo. Somehow I think this might have been tweaked a bit
It's been proved they are capable of swimming. See http://www.scientificamerican.com/article/will-it-float/ but no one has definitive proof according to the article