Have you ever wondered what it's like to go diving in the freezing ocean around Antarctica? Meet Jack Gordon and Mike Lindsell, Field Dive Officers at Rothera Research Station, who are no strangers to braving immersion down to -1.8°C during winter. Their job is to look after the safety of marine scientists as they study life deep in Antarctic waters.

In this episode, host Nadia Frontier chats to Jack about his adventures during his 7th season South - from the highs of spotting local penguins, to evacuating a dive in sudden changing conditions. Later in the show, Nadia chats to experienced commercial diver Mike about his first winter in Antarctica, after a number of years auditing and training divers for British Antarctic Survey.

Today's Antarctic lingo:

Iceworld is presented by marine biologist Nadia Frontier, and produced in partnership with Boffin Media.