There are still Expedition ships that go from either NZ or Tasmania to the Ross Sea and are trying to get into Commonwealth Bay to see Mawson's hut. We went on the Orion which not too long afterwards was taken over by Linblad. It now is the National Geographic Orion. On our cruise was a Linblad Captain assessing whether they would buy it.
If you really want to see a lot of Antarctica ponant are doing it with their new ship.
[URL unfurl="true"]https://eclipsetravel.com.au/package/27-day-le-commandant-charcot-from-dumont-durville-to-mawson-retracing-heroic-age-expeditions/[/URL]
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Though unfortunately it doesn't visit Macquarie Island on the way down which is known as either Australia's South Geogia or Galapagos. The only place where Royal Penguins breed. I had a close encounter with Royal penguins when a small group tried to remove my wellies.
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And from my angle.
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