Don't pretend you've never wondered what 670 butts in a river looks like. Look no further because here's a snapshot, and it looks as manic as it (probably, most likely) feels.

Rosie Hastie / Museum of Old and New Art
It was nine degrees on a winter morning in Hobart, and all these people could think about was stripping down and running bare naked into the Derwent River.

Rosie Hastie / Museum of Old and New Art
Tasmanians call this the Nude Solstice Swim and as part of Hobart's winter festival, Dark Mofo, the event is their annual ritual celebrating the end of the longest night of the year.

Rosie Hastie / Museum of Old and New Art
There must be something in the water.

Rosie Hastie / Museum of Old and New Art
They seem to be having a cracker of a morning!

Rosie Hastie / Museum of Old and New Art
Really, no one celebrates winter better than Tasmania.

Rosie Hastie / Museum of Old and New Art

Disney