Perhaps predictably – because, let's face it, it's a photo to warm the cockles of the coldest heart – the Facebook post quickly ratcheted up the likes, with thousands of people posting their admiration for Irene.

Irene's daughter, Helen Kearney, wrote: "I had the pleasure of escorting my mother Irene Kearney from Ballina on the cruise. Thank you to you all for all these lovely comments. I feel so proud of my mother. What an inspiration she is!"

And she's right. A world where every woman, aged 19 or 90, has Irene's give-a-damn attitude? Sounds pretty empowering to us.

Picture: Lady Watego Byron Bay/Facebook

This 90-year-old grandma is the only beach body inspiration we need