People get amused easily.
There is a documentary out there called "The Fantastic Journey" chronicles a turtle born in Florida, survives the myriads of predators as it races toward the sea right after it breaks out from its shell. The turtle then swims toward the North Atlantic, then Europe, the South America, the Caribbean, and after 40 YEARS (let see your human swim that long) goes back to the same precise spot in Florida to lay her eggs. No GPS.