Did Picasso really visit any prehistoric caves- Lascaux or Altamira?

Hi,
Several years ago I read that Picasso had never visited any prehistoric cave paintings as was so often claimed. I thought the matter was settled. Every other article these days claims he did. What is the truth. The article below claims he didn’t. I look forward to your feedback.
davidmich

http://www.euskomedia.org/PDFAnlt/munibe/aa/200503217223.pdf