Go to Hill Climb, Forest, Go right twice which will put you on SURVIVAL, click Forest 1. Remember up and down are what keep you balanced even though it seems like right/left would be what you use to tilt your vehicle.
I held down RT the whole way and barely had to balance myself out. Ended up driving under all the big ramps so don't worry about actually doing anything besides holding RT down.
I clocked in at 22 seconds and got gold.
Bronze will also pop for getting silver.