Silver CloudThe failure of a fuel pump and engine left the Silver Cloud adrift as it headed toward Antarctica on November 20, 2017, according to the Telegraph newspaper in London.

Power was reportedly restored to the ship in about an hour, permitting the Silver Cloud to return to Puerto Madryn in southeast Argentina for repairs. However,

Polar Star Runs Aground - AntarcticaMultiple news sources are reporting that another small cruise ship to Antarctica has run aground. 

This time it was the Polar Star which was carrying 115 passengers and crew when it ran aground in the Matha Strait, on its way back to Argentina.  Rescue workers based at the Chilean port of Punto Arenas were evacuating the ship,

The partially disabled Clelia II cruise ship is facing extreme weather conditions with 88 U.S. passengers aboard as it limps back to port in Argentina after one of its engines stopped working. 

Operated by Polar Cruises, (but see comments below), the Clelia II is a Antarctica explorer vessel with a crew of around 77.   The cruise ship experienced limited maneuverability