The Big Overhang wall offers the longest and hardest routes in the park. There is a ramp dividing the overhang from the main canyon that provides an easy class 5 scramble to/from the parking lot. This area does not see many climbers.
Follow the trail from the parking lot down the stairs and stay to your left. Continue following the wall on your left through the main canyon. Squeeze through the slot at the end and the Big Overhang wall is on your left.