In reply to jonnie3430:
From having read about Skip Novak's other trips to S Georgia/ Antarctica, the boat will have had a crew left onboard. I doubt leaving an unmanned boat anchored in these waters is acceptable under the Antarctic travel operators code.
and as SV notes 'There is no rescue infrastructure, so each expedition has to have its own dedicated vessel standing by for emergencies.' - the dedicated vessel will be the yacht.
Post edited at 14:03