My husband and I spent the afternoon mountain bike riding through Whiting Ranch and then on to Santiago Truck Trail. The Santiago Truck Trail heads on up towards Saddleback. You could actually get to the top this way--with lots of pain. One great feature of Santiago Truck Trail is the Luge a 1.5 mile gnarly single track dropping 700 feet toward Live Oak Canyon Road. It's great fun if you like narrow, steep and scary single track. I was petrified.