We can't comment on what someone else has said; we can only comment from our experience. When we viosited Antarctica, the terrain was relatively flat, but rocky. Aids for walking were unnecessary, as the terrain did not demand such. Nobody on our boat required them, although most( including us ) had brought them. Besides, one is not going to walk very far anyway. Granted, if one is going to attempt to walk up a penguin highway, which is slippery, then yes, one may require some kind of aid. Most people will not attempt something as foolish as that, however. One can easily walk up the gentle hills( assuming one wants to do that ) , having no difficulty by walking on the gravel and avoiding the icey penguin highways, adjacent to where one would walk. Of course, we are advocates of the philosophy "if you don't bring it, you can't use it," and if it makes one comfortable, gthen bring it. But the OP asked if those items were necessary, and based on our experience, the answer is 'no.'