The silver will work fine for what you want. The issue is you'll need to acquire the various mounts for where you'll be filming. A floaty back door would probably be a good idea, just in case the camera went overboard it would float. The cameras come with a clear waterproof housing so that's not an issue. You'll need to pick up a class 10 SD memory card. The lower class cards don't write quick enough for video equipment. I'd recommend at least a 16GB card.