Another camera note. Not only should you get extra batteries, but if your camera takes any add on telephoto lenses, buy one. When the penguins are nearby, you will probably not be able to get too close. Without a telephoto lens the penguins will be tiny spots of dark on an otherwise white photograph. It’s also a good idea to bring a tripod. That way you can set up the camera on self timer and get yourself in the photos.
mike