LOS ANGELES — How do you touch all seven continents in just 72 hours? Easy, just follow in the footsteps of Kasey Stewart and Julie Berry.

The two American travel photographers will depart tomorrow, Dec. 13, from Sydney, Australia in an attempt to set a Guinness World Record by touching every continent in just three days. Is it possible? If all goes to plan and there are no travel delays, the two will traverse across the world and arrive on King George Island, Antarctica the morning of Dec. 16 as world record holders.

They’ll be racing against the clock – the current Guinness World Record record for ‘Fastest to touch all seven continents’ is five days.

The route they’ll be taking is: Sydney, Australia; Dubai, UAE; Cairo, Egypt; Frankfurt, Germany; Toronto, Canada; Santiago, Chile; Punta Arenas, Chile; King George Island, Antarctica.

The total estimated elapsed time to touch all seven continents will be 72-79 hours dependent upon weather for the last flight to Antarctica. The two will spend almost 50 hours in an airplane and have on average 3.6 hours on each continent. They will be leaving the airport on each continent for activities that include a limo ride through Dubai, having a drink in a tavern in Frankfurt, ascending the CN Tower in Toronto and winter shopping for Antarctica in Santiago. Quark Expeditions, the leading operator in polar expeditions, is sponsoring their final flight to Antarctica.

Last year, after stepping foot in Antarctica, Stewart achieved his lifelong goal of travelling to all seven continents. “As a little kid, I always wanted to touch the corners of the earth and get a taste of every part of the world,” he said. “After I did that last December, I felt like I had barely scratched the surface and wanted to push myself to do something bigger.”

For live updates on their trip, following them on Instagram: @Kasey and @JulieBerry. You can also visit 7in72.com for more details.