At the end of the Tour, you will end up in New Zealand. The last event in this region, is called the "Aoraki" and they recommend you use a pulse goggles for the event, because of the heavy snow.
Choose this event, and make sure you are NOT wearing pulse goggles. You should have a very low survival probability (4%).
Just take your time down the hill, and follow Griff and his trail as much as you can. Keep in mind, he does make mistakes! On large jumps you must boost to clear any large gaps. You should follow the flares, go slowly and avoid jumping if not necessary. Two flares next to each other signify a ramp needed to clear a gap. Also, you are allowed 3 total rewinds, if you ever take a nasty spill, and they will not prevent you from attaining the achievement.
Note: You do not need to beat Griff to unlock this achievement.