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Every Sunday Luke Grant chats with a Remarkable Australian. This week, he's joined by polar explorer Dr Geoff Wilson, who's broken multiple records including becoming the fastest person to cross Greenland unsupported. 

<p>Every Sunday Luke Grant chats with a Remarkable Australian. This week, he's joined by polar explorer Dr Geoff Wilson, who's broken multiple records including becoming the fastest person to cross Greenland unsupported.&nbsp;</p>

Weekends with Luke Grant, 9am to 1pm every Saturday and Sunday on 2GB.

<p>Weekends with Luke Grant, 9am to 1pm every Saturday and Sunday on 2GB.</p>