A duo of 81-year-old women are on the adventure of a lifetime: Seeing the world in 80 days

Two longtime friends are proving it's never too late to get out and see the world. 

Eighty-one year olds Sandy Hazelip and Ellie Hamby, inspired by Jules Verne's novel, "Around the World in 80 Days," are on a mission to see all seven continents, nine Wonders of the World and visit 18 countries in just over two and a half months. 

So far, they're making good progress: Hamby and Hazelip have set foot in Antarctica, and told CBS News that on Mar. 4, they saw the world from a plane flying over Mount Everest.