Antarctic Iceberg Question

I saw a video of the that giant iceberg that broke off of Antarctica, and it raised a question in my mind…
What happens to penguins stuck on a chunck of iceberg that floats away? Do they just jump off and swim back to the mainland, or do they stay on the iceberg hoping it will take them to new and wonderful far away lands? The one in the video looked absolutely clueless.

Have you ever seen a penguin looking anything other than clueless?

Well these huge icebergs move very slowly. Like they may move only a few hundred miles over several years. Plus they melt slowly so the penguins can probably live quite happily on the edge of the these icebergs for all season diving off for fish and what not. And then when winter sets in the ocean surface freezes and they can walk back to their nesting grounds. Depending on what their nesting procedures are.