I had read about how rough South Georgia Island was, but that's not the same as seeing it. We also had the good fortune of seeing the waterfall that was the last obstacle before reaching the Stromness whaling plant, and Shackleton's grave at Grytviken (interesting that he wanted to be buried there). The Grytviken museum had a facsimile of the J Caird, and having just crossed the Drake Passage in "good" conditions, it is nuts that their rescue plan worked.