An Eastern black rhino is due to travel almost 6,500 miles, from Flamingo Land in North Yorkshire to the Akagera National Park in Rwanda, Africa.
Olmoti's year-long journey will finish with her being released into the wild.
During the first stage of the journey, three-year-old Olmoti will be moved by lorry to Dvur Kralove Zoo in the Czech Republic, where she will meet four other rhino.
One they become familiar with each other, all four will be flown to Rwanda in one of the biggest animal transportations of its type to ever take place.
The whole process, including a staged release in Rwanda, is expected to take up to a year.
Ross Snipp, Flamingo Land's zoo manager, said: "This is a once in a lifetime event."
"Olmoti doesn't know it yet, but she is about to become one of the most important black rhino in Africa."
Sarah Clark went to see Olmoti and her keepers on her last day at the zoo.