Levi's GranFondo Medio+Willow Creek
The Medio riders have an option to take the gravel/dirt climb up Willow Creek road. It's a challenging option in its own right, a little faster than Coleman Valley Road but demands a little bit more bike handling skills to maneuver through some loose gravel and dirt roads. There is a climb on this route that can be slippery and if you don't stay seated and put the power down, you might end up walking some of it. There is limited support on this road except for when you return to Occidental. It also eliminates access to one fully staffed rest stop (Portuguese Beach).