A Quark Expeditions ship, the Ocean Nova, ran aground in Antarctica on Tuesday, then freed itself from rocks at high tide on Wednesday.
Another Quark vessel, the Clipper Adventurer, picked up Ocean Nova passengers on Wednesday before the Ocean Nova was freed from the rocks.
All 64 passengers were taken back to Ushuaia for debarkation, Quark said. All 41 crew members were reported safe.
High winds pushed the vessel onto rocks about one mile from an Argentine military base on the eighth day of a two-week cruise from Ushuaia, Argentina.
"The experience of Captain Per Gravesen and his crew and the special construction of the vessel, which was built for polar waters, have played a significant role in ensuring the safety of our guests during this incident," Patrick Shaw, president of Quark Expeditions, said in a statement.
Video of the ship's hull prior to the refloating showed that it had not sustained any damage as a result of the grounding, and that there had been no leaking of any kind.
The ship will return to Ushuaia and will be given a further inspection, and will operate its planned Feb. 22 sailing, assuming there is no damage.
"We are grateful that no environmental damage occurred, and that all travelers aboard Ocean Nova are safe," said Shaw.
Report was updated when passengers transferred to the Clipper Adventurer.
Report was again updated when the ship was freed from the rocks.