Organised by The David Sheldrick Wildlife Trust, the iWorry International March for Elephants will take place in 15 locations around the globe, including Melbourne in Australia and Bangkok in Thailand.
The march aims to highlight the issue of the illegal wildlife trade, and to spread the message that elephants are being poached to extinction for their ivory.
Last year, up to 36,000 elephants were killed for their ivory. That's one life lost every 15 minutes. At the current rate of poaching, African Elephants could face extinction in the wild by 2025.
The situation is also dire for Asian Elephants, who face an uncertain future in ever-decreasing wilderness preserves where poaching is a very real problem.
The Melbourne March begins at Federation Square at 12.30pm.