To another rescue under way this evening, this one moving a bit more slowly because of where they need help. The edge of anti-act ka where 70 people are stranded trapped in heavy ice. Gio benitez on... See More
To another rescue under way this evening, this one moving a bit more slowly because of where they need help. The edge of anti-act ka where 70 people are stranded trapped in heavy ice. Gio benitez on how they plan to get them out. Reporter: The boat is packed with 75 tourists and researchers on an antarctic adventure. They set sail from new zealand december 8th. Here they are a week later, thrilled to finally find sea ice. The australaisan antarctic expedition has finally made it to the ice. Look at that view. Reporter: But as the days wore on, that sea ice became more chilling than thrilling. Slowing the ship to a freezing halt. As you can see where's actually in a blizzard at the moment. Reporter: And now, they're trapped. And we have wind speeds of 50 kph, reaching in excess of 70 kph. The vessel hasn't moved for the last two days and we're surrounded by sea ice. We just can't get through. Reporter: The tourists and researchers were retracing the steps of explorers from 100 years ago, looking at these famous huts built in 1911, studying the local wildlife. Temperatures near zero, with heavy winds, weather that could make the rescue dangerous. But even so, the explorers are in good spirits, passing the time by doing even more research. Ice breaking ships are now rushing to rescue the passengers, like this one sent by the chinese, the snow dragon. But david, it'll be hours before this ship arrives to help. Thank you, gio benitez.
This transcript has been automatically generated and may not be 100% accurate.