Revisit the frozen continent with us in this mini rerun of the Voices from Antarctica series. This week, Alison visits Cape Crozier to meet a colony of emperor penguins and the team of scientists studying them.

Emperor penguins spend part of the year huddled together on the ice, keeping eggs and then chicks warm. But where do they go once breeding season is over?

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This week we're starting a mini rerun of Alison Ballance's award-winning 2020 series Voices from Antarctica. We're starting with episode four: after travelling south to the frozen continent in a Hercules aircraft and visiting Scott Base, Alison is now at Cape Crozier in Antarctica to meet the resident emperor penguins - and the scientists studying them.

Here, a team of NIWA researchers is hoping to unravel the emperors' secret lives at sea using data loggers.

Thank you to Liz Garton for editing help.

Learn more:

Read Alison's story (and check out her photos!) from the original episode that first aired in 2020.

Find all the Voices from Antarctica episodes here

Go to this episode on rnz.co.nz for more details