Short trip up Sarahs Knob. Parked on Woronora Dam Road at the entrance to the Pipeline Trail. Hiked along the Pipeline Trail for about 10 minutes to the intersection of Sarahs Knob Trail. Sarahs Knob Trail heads off to the east. On the western side of Pipeline Trail at this intersection is a picnic table. Walk past the picnic table and scramble up the hill to the summit of Sarah's Knob. Here you get a great view out across Woronora Dam.