During the Tour, you will be in Antarctica. The last event in this region, is called "Mount Slaughter" and they recommend you use solar panel for this event, because of how cold it is in the shade.
Choose this event, and make sure you are NOT do not solar panels. HOWEVER, equip the best wingsuit you own! You should have a very low survival probability (4%).
Just take your time down the hill. The hardest part is learning when and how to use your wingsuit. It could take a lot of practice and patience, but eventually you will get it. After going over the first biggest jump, you will need to stick the the right hand side for most of the run, and try to fly over any large sections of shade. See the video for the best explanation.
Also, you are allowed 3 total rewinds, if you ever take a bad turn, and they will not prevent you from attaining the achievement. You cannot use them once you fail.
Follow the route, and string together a perfect run with your wingsuit! Patience necessary.