It's a tradition that COVID-19 couldn't break.
There was no way a pandemic was going to stop the University of Sydney's Doctor of Veterinary Medicine students from posing for their annual charity calendar - minus the clothes.
Camden Farms Student Society vice-president Clemence King said the students always looked forward to doing their bit to help farmers and rural residents and wearing nothing but their birthday suits, hats and boots was a small price to pay.
"A lot of people wouldn't get involved if this was just a calendar for the sake of it," Ms King said.
"We take a lot of pride in the fact that all profits go to people in need.
"There are a lot of students out here and everyone wants to raise as much money as possible."
This year's calendar was shot in Camden, south of Sydney, about a month ago. Photographer Meredith Schofield was responsible for the beautiful shots.
Ms King said the shoot had some extra challenges this year with COVID-19 restrictions in place.
"It was definitely much trickier," she said. "We couldn't have any pictures with any of the students touching, and in the past, we've had some where we were hugging, so we couldn't do that.
"Everyone had to be 1.5 metres apart, had to wear safe masks between shoots and while setting up and of course we couldn't have more than 20 people in one place at a single time.
"That meant that a couple of the large group shots had to be done in multiple pictures and put together in the editing stage."
The 23-year-old said there was a brief stage where they thought the restrictions might prevent the calendar from going ahead this year, but everyone was determined to do their bit for others who were enduring hardship.
"Everyone looks forward to this fun event each year and it's for a really good cause," Ms King said.
"Our charity this year, Aussie Helpers, are great. They help out all the rural communities, families and farmers, especially following all the drought in the past couple of years, the flash flooding, the bushfire season and now Covid as well.
"Farmers have had it tough and haven't really had a break - it's been disaster after disaster.
"Aussie Helpers provide animal feed and supplies, financial help, mental health support and more. We think it's really important because our rural communities have not had it easy."
And with Christmas around the corner, here's an ideal stocking filler.
"Everyone should go ahead and buy it because there are 16 tasteful but funny pictures of us with animals and beautiful scenery," Ms King said.
"The money is contributing to a great cause and the calendar will make a good Christmas present if you don't have one yet."
Get your Bums for the Bush Nude Calendar 2021 for $25 from bumsforthebush.com