
Australian researchers in the Antarctic have taken a dip into a sub-zero pool to mark the winter solstice at Mawson station.

Forecasts are revealing a frigid evening for many parts of the country, with temperatures that are being predicted to vary from a maximum of 19C overnight in Cairns, compared to a frosty 5C in Tasmanian and -1C in Canberra.
At the same time, Sydney is expected to get down to 9C and Melbourne down to 7C.

As soon as the sun rises, several people will be stripping off and entering the water at 7.42 am.
The water temperature was nearly 13C last year.

The researchers at Mawson Station in the Antarctic will not see a sunrise until June 29, and they will take their dip into a sub-zero swimming pool carved out of the ice at Horseshoe Harbour.

There are also going to be lantern festivals around the country to celebrate the day, some of which will also offer workshops to teach how to make one's own lanterns.
Stargazers may also be able to see Mercury, Venus, Mars, Jupiter, and Saturn in alignment during the night.